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The Siemens-Martin open-hearth process is developed

1865 · France · importance 4/5 · manual

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Appears in 2 stories

Production and labor step 97
The Industrial Revolution step 62

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Start date (EDTF) 1865 End date (EDTF, empty for a point event)

1914 · 1914-07-28 · -0489 (490 BCE) · 1930~ (circa) · 19XX (century) · 197X (decade)

Location Importance (1 minor to 5 pivotal)

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colonialism culture detention diplomacy economy environment exploration kenya pillar politics propaganda religion science society technology violence war

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