Events, Verisoph

c. 10000 BCE Agriculture and the Neolithic Revolution 0 cit. People began farming crops like wheat and barley and herding animals instead of only foraging. Farming led to permanent settlements, food surpluses, population growth and the rise of cities. economy / technology ●●●●●

c. 4500 BCE The ard plough 0 cit. Farmers used a simple scratch plough pulled by animals to break soil for planting. The plough raised crop yields and let fewer people feed more. economy / technology ●●●

c. 3500 BCE The wheel 0 cit. The wheel and axle appeared first for pottery and then for wheeled carts. It transformed transport, trade and machinery. technology ●●●●●

c. 3301 BCE Writing is born from a bill of goods 0 cit. Accountants in Sumer sealed clay tokens inside hollow clay balls called bullae, then pressed the token shapes onto the outside so the contents could be read without breaking the ball. Marking the surface soon replaced the tokens entirely, and these impressed signs became early cuneiform. On this account the first writing was invented not for poetry or law but to record who owed what. culture / economy / technology ●●●

c. 3300 BCE Bronze metallurgy 0 cit. Smiths learned to alloy copper with tin to make bronze, a harder metal than either alone. Bronze tools and weapons defined an age and drove long distance trade in metals. technology ●●●●

c. 3201 BCE Invention of writing 0 cit. Scribes in Sumer develop cuneiform, the first full writing system, letting societies record law, trade, and memory beyond a single lifetime. Recorded history begins here. culture / technology ●●●●●

c. 3200 BCE Writing and cuneiform 0 cit. Sumerians pressed wedge shaped marks into clay tablets to record trade, laws and stories. Writing let knowledge outlast memory and is the foundation of recorded history. technology ●●●●●

c. 3200 BCE Temple and palace accounting economies 0 cit. Early Mesopotamian temples and palaces tracked stores of grain, livestock, and labor on clay tablets, one of the first uses of writing. These ledgers recorded credit and debt long before coins existed. economy / technology ●●●●

c. 3100 BCE The sail 0 cit. Boats fitted with sails used wind power to travel rivers and seas. Sailing opened long distance trade and exploration by water. technology ●●●

c. 1800 BCE The alphabet 0 cit. Proto Sinaitic script reduced writing to a small set of signs for sounds rather than hundreds of symbols. This simple alphabet made literacy far easier to learn. technology ●●●●

c. 1300 BCE Shang bronze casting and ritual vessels 0 cit. Shang artisans produced elaborate cast bronze vessels used in ancestor worship and state ritual. The pieces show advanced piece-mold casting techniques. culture / technology ●●●

c. 1200 BCE Iron metallurgy 0 cit. Smiths mastered smelting and working iron, a common and strong metal. Iron tools and weapons spread widely because iron ore was far more plentiful than tin and copper. technology ●●●●

c. 1050 BCE The Phoenician alphabet 0 cit. Phoenician traders spread a 22 letter consonant alphabet across the Mediterranean. It became the parent of the Greek, Latin, Hebrew and Arabic scripts. technology ●●●

c. 600 BCE First coinage 0 cit. The kingdom of Lydia struck the first standardized coins from electrum, a natural gold and silver alloy. Coined money made trade, taxes and wages easier to measure. technology ●●●●

c. 600 BCE First coins minted in Lydia 0 cit. The kingdom of Lydia struck the first known coins from electrum, a natural alloy of gold and silver, stamped to certify their weight. Standardized coinage made trade faster by removing the need to weigh metal for each transaction. economy / technology ●●●●●

c. 550 BCE Croesus issues the first bimetallic coinage 0 cit. The Lydian king Croesus replaced electrum with separate pure gold and pure silver coins at a fixed ratio. This bimetallic system set a model for later coin economies. economy / technology ●●●●

c. 500 BCE Iron metallurgy spreads across China 0 cit. Iron tools and weapons came into wider use in the mid first millennium BCE. Iron plows and implements raised agricultural output and reshaped warfare. economy / technology ●●●

c. 500 BCE Babylon measures the sky in 360 degrees 0 cit. Using their base-60 numbers, Babylonian astronomers divide the circle of the sky into 360 degrees, each degree into 60 minutes of arc, each minute into 60 seconds. Every modern map, clock, and navigation system still uses these Babylonian divisions. science / technology ●●●●

c. 350 BCE Mathematical astronomy: Systems A and B 0 cit. Babylonian scholars develop purely mathematical schemes, known to scholars as System A and System B, to compute the future positions of the moon and planets with columns of numbers. It is arithmetic prediction of the heavens, centuries before Greek geometry. science / technology ●●●●

c. 312 BCE The Roman aqueduct 0 cit. Rome built long gravity fed channels to carry fresh water into cities, starting with the Aqua Appia. Aqueducts supplied baths, fountains and homes and supported large urban populations. technology ●●●

c. 251 BCE Archimedes measures curves and approaches the infinite 0 cit. Archimedes found areas and volumes of curved shapes by a method of exhaustion that came close to integral calculus, and he pinned pi between 3 10/71 and 3 1/7. He blended deep proof with mechanical intuition, weighing shapes in his imagination to guess results he then proved. His lost work The Method, recovered from a scraped-over medieval prayer book, revealed just how far ahead of his time he was. science / technology ●●●●

c. 250 BCE Archimedes screw 0 cit. A rotating screw inside a cylinder lifted water uphill with a simple turn of a handle. It was used to drain mines and irrigate fields and is still used today. technology ●●

214 BCE Qin construction of the Great Wall 0 cit. The Qin linked and extended earlier walls into a continuous defensive line against northern nomads. The work used forced labor on a vast scale. technology / war ●●●●

c. 200 BCE Roman concrete 0 cit. Romans mixed volcanic ash, lime and water to make a durable concrete that could set underwater. It made possible domes, harbors and structures like the Pantheon that still stand. technology ●●●●

c. 200 BCE The vertical waterwheel 0 cit. Waterwheels captured the energy of flowing water to grind grain and drive machinery. They were among the first machines to replace human and animal muscle with natural power. science / technology ●●●

c. 50 BCE Glassblowing 0 cit. Craftsmen learned to inflate molten glass with a blowpipe to shape vessels quickly. Glassblowing made glass affordable and common for the first time. technology ●●

c. 105 Paper 0 cit. The official Cai Lun is credited with refining papermaking from pulped fibers into cheap writing sheets. Paper spread slowly westward and became the main surface for writing and printing. technology ●●●●●

105 Cai Lun and the invention of paper 0 cit. The court official Cai Lun is credited with refining papermaking around 105 CE using bark, hemp, and rags. Paper became one of China's most influential contributions to the world. science / technology ●●●●●

c. 300 Bantu-speaking farmers reach modern KwaZulu-Natal 0 cit. Bantu-speaking farming communities, part of the broader Bantu expansion out of central Africa, reached the eastern coastal regions of what is now South Africa by around the third century CE. They brought iron-working, cattle keeping, and cultivated crops such as sorghum and millet. Archaeological sites like Silver Leaves and Broederstroom document this early Iron Age settlement. society / technology ●●●

c. 350 The great stelae of Aksum are raised 0 cit. Aksum's kings marked royal graves with towering carved granite obelisks, the largest single pieces of stone ever quarried and raised as monuments in the ancient world. The tallest that once stood reached over 30 metres before it fell and broke. One great stele looted by Italy in 1937 stood in Rome for decades and was finally returned to Ethiopia in 2005. culture / religion / technology ●●

27 December 537 The Hagia Sophia rises over Constantinople 0 cit. Justinian rebuilt the great church of Holy Wisdom after the Nika fire, crowning it with a dome so wide and light it seemed to hang from heaven. On entering it he is said to have exclaimed that he had outdone Solomon. For nearly a thousand years it was the largest cathedral in Christendom and the heart of Orthodox worship, later a mosque and now a monument. culture / religion / technology ●●●

c. 600 The stirrup 0 cit. Paired foot supports let a rider stay firmly seated and use weapons from horseback. The stirrup reshaped cavalry warfare across Asia and Europe. technology / war ●●●

605 Construction of the Grand Canal 0 cit. The Sui built a vast canal system linking the Yellow and Yangtze river regions. It moved grain and goods between north and south and became a backbone of the economy. economy / technology ●●●●●

c. 700 The windmill 0 cit. Vertical sail mills used wind to grind grain and pump water. Windmills gave regions without fast rivers a reliable source of mechanical power. science / technology ●●●

c. 700 Invention of woodblock printing 0 cit. Chinese craftsmen developed woodblock printing during the Tang, allowing texts and images to be reproduced. The Diamond Sutra of 868 CE is the oldest surviving dated printed book. culture / technology ●●●●

c. 700 Farming and ironworking in the highlands 0 cit. Bantu-speaking communities built settled economies on grain, bananas, and root crops, and on the smelting and forging of iron for hoes, knives, and spears. Smiths held a special, sometimes feared, standing, and iron tools and weapons moved through trade to herding neighbors who did not smelt. Groups such as the Kikuyu, Kamba, and Kisii were known for their metalwork. The craft spread with Bantu settlement across the first millennium CE. economy / technology ●●

717 Greek fire saves Constantinople 0 cit. An Umayyad army and fleet besieged Constantinople for a year, aiming to end the empire, but the great walls and a secret incendiary weapon held them off. This 'Greek fire', sprayed from ships and burning even on water, became the empire's most feared weapon; its exact recipe was a guarded secret and is still debated. The failed siege blunted the Arab advance into Europe and let Byzantium endure. technology / war ●●

c. 800 Tang flying cash 0 cit. Merchants in Tang China used paper certificates called feiqian, or flying cash, to transfer value over distance without carrying heavy strings of coins. These credit notes were a forerunner of true paper money. economy / technology ●●●

c. 850 Gunpowder 0 cit. Chinese alchemists mixed saltpeter, charcoal and sulfur into an explosive powder. Gunpowder led to firearms and cannon and changed warfare worldwide. technology / war ●●●●●

c. 850 Invention of gunpowder 0 cit. Chinese alchemists discovered gunpowder while seeking elixirs of immortality. It was gradually adapted for weapons and became a transformative technology. science / technology ●●●●●

c. 1000 The horse collar in Europe 0 cit. The padded collar, developed earlier in China, let horses pull heavy loads without choking. It made horses efficient for ploughing and hauling and boosted farm output. economy / technology ●●●

c. 1023 Jiaozi, the first paper money 0 cit. Private merchants in Sichuan issued paper notes called jiaozi, and the Song government took over their issue in the early eleventh century. This was the world's first government-backed paper currency. economy / technology ●●●●●

c. 1040 Movable type printing 0 cit. Bi Sheng created reusable characters of fired clay to print pages. It was the first movable type, centuries before the same idea reshaped Europe. technology ●●●

c. 1040 Bi Sheng invents movable type 0 cit. The artisan Bi Sheng created movable type from baked clay around the 1040s. It was an early form of the technology that would later reshape publishing worldwide. technology ●●●●

c. 1088 The magnetic compass for navigation 0 cit. Sailors used a magnetized needle to find direction even without sight of the stars or shore. The compass made open sea navigation far more reliable and enabled long voyages. technology ●●●●

c. 1088 Magnetic compass used for navigation 0 cit. Song texts describe the magnetic compass being used to find direction, including at sea. The instrument later spread across the world and transformed navigation. exploration / technology ●●●●

c. 1200 The rock-hewn churches of Lalibela 0 cit. Under the Zagwe king Lalibela, eleven churches were cut downward out of solid volcanic rock, each carved as a single piece with windows, columns, and drainage channels. The site was meant as a new Jerusalem for Ethiopian Christians who could no longer easily reach the Holy Land. The churches remain in active use and are among the most striking works of medieval engineering anywhere. culture / religion / technology ●●●

c. 1200 Sirikwa holes mark an Iron Age herding culture in the western highlands contested 0 cit. Across the western Kenyan highlands are thousands of saucer-shaped hollows dug into hillsides, known as Sirikwa holes, dated to roughly 1200 to 1600 CE. Each was a walled homestead with a sunken cattle pen that could be guarded against raiders at night. Many Kalenjin groups link these remains to their ancestors, though scholars debate how directly the Sirikwa connect to any single present-day community. society / technology ●●

c. 1286 Eyeglasses 0 cit. Unknown craftsmen near Pisa mounted two convex lenses in a frame to correct failing eyesight. Eyeglasses extended the working lives of scholars and artisans. science / technology ●●●

c. 1300 The mechanical clock 0 cit. European tower clocks using a verge escapement measured time with gears and a swinging bar instead of water. Mechanical clocks brought regular hours to towns and reshaped how people organized work and life. technology ●●●●

1434 Van Eyck perfects oil painting in the North 0 cit. The Flemish master Jan van Eyck paints the Arnolfini Portrait, showing a command of oil paint that let light, texture, and detail glow as never before. His technique spread across Europe and marked the flowering of a distinct Northern Renaissance in the Low Countries. culture / technology ●●●

c. 1434 Gil Eanes passes Cape Bojador 0 cit. Gil Eanes sails past Cape Bojador on the African coast, a point sailors had long feared as the edge of the known world. Getting beyond it broke a psychological barrier and opened the way for voyages ever further down the coast of Africa. science / technology ●●

1436 Brunelleschi crowns Florence with a dome 0 cit. Filippo Brunelleschi completes the great dome of Florence's cathedral, the largest masonry dome ever raised and long thought impossible to build. Drawing on the study of ancient Roman engineering, it became the signature monument of the early Renaissance. culture / technology ●●●

c. 1440 Gutenberg's printing press 0 cit. Johannes Gutenberg develops printing with movable metal type around 1440. Cheap, fast reproduction of texts spreads literacy and new ideas, fueling the Reformation and the Scientific Revolution. culture / technology ●●●●●

c. 1440 Gutenberg's printing press spreads learning 0 cit. Around 1440 Johannes Gutenberg developed movable-type printing in Europe, making books far cheaper and more plentiful. Printing spread literacy and ideas and transformed how knowledge was shared. culture / technology ●●●●●

c. 1440 Media, education, and information 0 cit. The power to inform, persuade, and shape belief. From the printing press through mass media, schooling, propaganda, and the internet, whoever controls information shapes how societies see themselves and the world. pillar / society / technology ●●●●●

c. 1450 Ming rebuilding of the Great Wall 0 cit. The Ming rebuilt the Great Wall in brick and stone to guard against Mongol raids. Most of the wall standing today dates from this period. technology / war ●●●●

February 1488 Portuguese navigators round the Cape 0 cit. Portuguese navigator Bartolomeu Dias became the first recorded European to sail around the southern tip of Africa, naming it the Cape of Storms; the Portuguese crown later renamed it the Cape of Good Hope. This voyage opened a sea route around Africa toward the Indian Ocean and Asia. Portuguese ships subsequently stopped at the Cape for water and trade with local Khoikhoi but did not settle there. diplomacy / technology ●●

3 August 1492 Columbus sails the day after the expulsion deadline 0 cit. Columbus's first voyage left the port of Palos on 3 August 1492, just after the final deadline for Jews to leave Spain. The two events fell in the same summer, and the harbor was crowded with departing refugees. The overlap is a documented coincidence of timing, not evidence that the voyage was arranged as part of the expulsion. politics / religion / technology ●●●

1492 Luis de Santangel helps fund the first voyage 0 cit. Luis de Santangel, keeper of King Ferdinand's privy purse and a member of a prominent converso family, helped arrange the money for Columbus's voyage after the crown first hesitated. He advanced and organized funds drawn largely from royal and treasury sources. This is documented court finance, not a private Jewish scheme, since Santangel was a Catholic official of the Aragonese crown. economy / politics / technology ●●

1492 Luis de Torres, the interpreter, crosses the Atlantic 0 cit. Luis de Torres, a converso who knew Hebrew, Aramaic, and Arabic, was baptized shortly before sailing and joined the voyage as an interpreter. Columbus expected to reach Asia and thought these languages might help in talks with its rulers. Torres was among the first Europeans to land in the Americas and is often described as the first person of Jewish origin to do so. culture / religion / technology ●●

c. 1495 Aldus Manutius prints the Greek classics in Venice 0 cit. The printer Aldus Manutius founds the Aldine Press and issues affordable pocket editions of Aristotle, Plato, and the Greek and Latin authors. His work put the recovered classics into the hands of scholars across Europe and helped standardize the printed book. culture / technology ●●

c. 1500 Durer carries the Renaissance into Germany 0 cit. Albrecht Durer travels to Italy, absorbs its art and theory of proportion, and brings the Renaissance home to Germany through his paintings and printed engravings. His prints spread the new style far beyond what any single painting could reach. culture / technology ●●●

c. 1500 Tawantinsuyu at its height 0 cit. By around 1500 the Inca Empire, called Tawantinsuyu, stretches some 4,000 kilometers from Colombia to Chile and holds perhaps ten to twelve million people, though estimates vary. It is bound together by a vast royal road system, the Qhapaq Nan, with waystations and rope bridges, by knotted-cord quipu records, and by a labor tax called the mita, under which communities owed rotating work for the state instead of paying money. politics / society / technology ●●●

c. 1500 Marakwet furrows carry mountain water down to a dry valley 0 cit. The Marakwet built a network of gravity-fed irrigation furrows that draws water from streams rising in the Cherangani Hills and carries it down more than a thousand metres into the dry Kerio Valley. The system is thought to be several centuries old, with dozens of channels running for tens of kilometres, historically built and repaired with wood, stone and packed earth. It let farmers grow sorghum, millet and other crops in country too dry for reliable rain-fed farming. economy / environment / technology ●●●

1501 The first printed music 0 cit. Ottaviano Petrucci printed a book of polyphonic songs using movable type. Printing made music cheap to copy and spread it far beyond monasteries and courts. culture / technology ●●●

c. 1543 Science and technology 0 cit. Knowledge as power. From the scientific revolution through industrialization, the bomb, the computer, and the space age, the capacity to understand and reshape nature drives every other pillar and decides which societies rise. pillar / science / technology ●●●●●

c. 1543 The Portuguese reach Japan and bring the gun 0 cit. Portuguese traders blown ashore at Tanegashima become the first Europeans to reach Japan, and they carry matchlock firearms that Japanese lords quickly copy. The contact opened a lucrative trade carrying Chinese silk to Japan in exchange for silver, and brought Jesuit missionaries in the traders' wake. culture / economy / technology ●●

1554 Patio process spreads mercury silver refining 0 cit. A method using mercury to extract silver from lower grade ore, refined by Bartolome de Medina, sharply raised colonial output. Mercury from Spanish mines became a strategic input the crown controlled to tax silver. economy / technology ●●●

c. 1600 The compound microscope 0 cit. Dutch lens makers built early microscopes that magnified tiny objects. The microscope revealed cells and microbes and opened a hidden world to science. science / technology ●●●●

1605 First newspaper, the Relation, is printed 0 cit. Johann Carolus printed the Relation aller Furnemmen und gedenckwurdigen Historien in 1605, recognized by the World Association of Newspapers as the first printed newspaper. It grew out of the handwritten news bulletins he had sold to wealthy clients. society / technology ●●●●

1608 The telescope 1 cit. Hans Lippershey filed for a patent on a device that made distant objects look nearer. Turned to the sky by Galileo, the telescope transformed astronomy and our view of the cosmos. science / technology ●●●●

c. 1621 Gustavus Adolphus reforms the Swedish army 0 cit. King Gustavus Adolphus introduced conscription of Swedish peasants into a standing national army, standardized lighter and faster artillery, and combined infantry, cavalry, and artillery into integrated tactical units. These reforms, refined through the Thirty Years' War, made Sweden a leading military power despite its small population. Many historians credit Gustavus Adolphus as a founder of modern combined-arms warfare. technology / war ●●●

10 August 1628 Vasa capsizes on maiden voyage 0 cit. The Swedish warship Vasa, built top-heavy with too many heavy bronze cannon on its upper decks for its narrow hull, capsized and sank less than a mile into its maiden voyage in Stockholm harbor. An inquiry found shipwrights had known the ship was unstable but no one dared tell King Gustavus Adolphus, who had personally demanded the design. The wreck was recovered largely intact in 1961 and remains a case study in institutional failure to report bad news upward. technology / war ●●

1656 The pendulum clock 0 cit. Christiaan Huygens used a swinging pendulum to regulate a clock, making timekeeping far more accurate. Precise clocks aided science, navigation and daily coordination. science / technology ●●●

1661 Stockholms Banco issues Europe's first banknotes 0 cit. Stockholms Banco, led by Johan Palmstruch, issued the first banknotes in Europe as receipts that could circulate in place of heavy copper coins. The bank later collapsed after printing too many notes. economy / technology ●●●●

1687 Newton's Principia founds modern physics 0 cit. Isaac Newton's Principia gives universal laws of motion and gravity, showing that the same mathematics governs the heavens and the earth. It made the physical world calculable and predictable, the power that would drive the industrial and technological ages. pillar / science / technology ●●●●

1701 The seed drill 0 cit. Jethro Tull built a machine that planted seeds in neat rows at set depth. It cut waste and raised yields and was an early step toward mechanized farming. economy / technology ●●

c. 1701 Jethro Tull develops the seed drill 0 cit. Jethro Tull introduced a horse-drawn seed drill that sowed seeds in neat rows at a controlled depth. It reduced waste and raised crop yields, a step in the wider agricultural improvement that fed a growing population. economy / technology ●●●

1709 Darby smelts iron with coke at Coalbrookdale 0 cit. Abraham Darby succeeded in smelting iron ore using coke instead of scarce charcoal. The method freed ironmaking from dependence on wood and allowed production to expand near coalfields. economy / technology ●●●●●

1712 Newcomen's atmospheric steam engine 0 cit. Thomas Newcomen built the first practical steam engine, used to pump water out of mines. It was the first machine to do useful work from steam and heat. science / technology ●●●●

1712 Newcomen builds the atmospheric steam engine 0 cit. Thomas Newcomen erected the first commercially successful steam engine to pump water from coal mines. It used atmospheric pressure and condensing steam, and it remained in use for decades despite heavy fuel consumption. economy / technology ●●●●●

c. 1717 From working tools to moral symbols 0 cit. The square, level, plumb rule and compasses began as the real tools of the operative stonemason for checking right angles, horizontals, verticals and circles. As Freemasonry turned from a trade guild into a speculative moral society in the early eighteenth century, these tools were reread as symbols: the square for honesty, the level for equality, the plumb for uprightness. That double life, real tool and moral emblem, is what fed metaphors like on the level and on the square into everyday speech. culture / technology ●●

c. 1730 Lewis: a mason's son and a lifting device 0 cit. A lewis is an iron cramp that grips a dressed stone so a crane can lift it, a tool used since Roman times. Masonry borrowed the word figuratively: a lewis is the son of a Mason, the strength that supports his ageing father, and the emblem appears on tracing boards described in early exposures such as Prichard's Masonry Dissected of 1730. Both senses, the hardware and the mason's son, still coexist. society / technology ●

c. 1730 Ashlar: rough and perfect stone 0 cit. Ashlar is a masonry term for a squared block of building stone. Freemasonry made the rough ashlar and the perfect ashlar into a symbol of self-improvement: the initiate is the rough stone shaped by education and discipline into the finished block. The imagery appears on eighteenth-century tracing boards. The word stayed largely technical in ordinary English, but the rough-to-polished idea echoes phrases like a rough diamond. culture / technology ●

1733 Kay patents the flying shuttle 0 cit. John Kay's flying shuttle let a single weaver work a wide loom quickly and alone. Faster weaving increased demand for spun thread and pushed inventors toward mechanized spinning. economy / technology ●●●●

c. 1750 to c. 1830 Turnpike trusts improve the roads 0 cit. Turnpike trusts built and maintained better roads and charged tolls, with engineers like Telford and McAdam improving surfaces. Faster coaches and carts cut journey times before the railways. economy / technology ●●●

July 1761 The Bridgewater Canal opens 0 cit. The Duke of Bridgewater's canal carried coal from Worsley to Manchester and halved the price of coal in the city. Its success launched a wave of canal building across Britain. economy / technology ●●●●

c. 1764 The spinning jenny 0 cit. James Hargreaves invented a machine that let one worker spin many threads at once. It was a key trigger of the mechanized textile industry. economy / technology ●●●●

c. 1764 Hargreaves invents the spinning jenny 0 cit. James Hargreaves built a machine that let one worker spin several threads at once. The spinning jenny sharply raised the output of yarn and helped mechanize the cotton industry. economy / technology ●●●●

5 January 1769 Watt patents the separate condenser 0 cit. James Watt patents the separate condenser, the improvement that makes steam power efficient and practical. The engine becomes the driving force of the Industrial Revolution, which transforms how humanity works, travels, and lives. economy / technology ●●●●●

1769 Watt's improved steam engine 0 cit. James Watt added a separate condenser that made the steam engine far more efficient and fuel saving. His engines powered factories, mines and later transport and drove the Industrial Revolution. science / technology ●●●●●

1769 Arkwright patents the water frame 0 cit. Richard Arkwright patented a water-powered spinning frame that produced strong cotton thread. The machine needed a mill and a workforce, pointing toward the factory system. economy / technology ●●●●●

1771 Arkwright's factory system 0 cit. Richard Arkwright gathered water powered spinning machines and workers under one roof at Cromford Mill. This factory model of centralized, powered, wage labor production spread across industry. economy / technology ●●●●

1771 Arkwright opens Cromford Mill 0 cit. Richard Arkwright built a water-powered cotton mill at Cromford, often called the first modern factory. It gathered machines and workers under one roof on shift work, a model widely copied. economy / technology ●●●●●

c. 1772 Wedgwood turns cost accounting into a weapon 0 cit. During a slump the potter Josiah Wedgwood dug into his own books and worked out the true cost of making each item, separating fixed overhead from the cost of materials and labor. The numbers showed him where to cut prices to win markets and where he was losing money. It is an early case of accounting used not just to record the past but to manage and direct a business. economy / technology ●●

1774 Wilkinson builds a precision cannon-boring machine 0 cit. John Wilkinson patented a boring machine that could cut true cylinders. Its accuracy made Watt's steam engine cylinders airtight and practical to manufacture. technology ●●●

1775 Founding of Boulton & Watt 0 cit. Matthew Boulton and James Watt form a partnership to build Watt's improved steam engine at the Soho works in Birmingham. Their engines power mines, mills, and factories, driving the Industrial Revolution. economy / science / technology ●●●●

1775 Boulton and Watt form their steam engine partnership 0 cit. Matthew Boulton and James Watt joined to build and sell improved steam engines from the Soho works. The firm supplied power to mines, mills, and factories across Britain. economy / technology ●●●●

1779 Crompton develops the spinning mule 0 cit. Samuel Crompton combined features of the jenny and the water frame into the spinning mule. It spun fine, strong yarn in quantity and became the mainstay of cotton spinning. economy / technology ●●●●