c. 1300
Technology
Europe
Blast furnace in Europe
Taller furnaces with water-powered bellows produce liquid iron.
Why it mattered
Iron output rose from kilograms to tonnes per day.
Middle Ages
1300
2 recorded milestones at this point in the record.
c. 1300
Warfare
Eurasia
Ottoman and European cannon
Gunpowder artillery moved from tubes and bombards to siege-breaking guns.
Why it mattered
Rendered high medieval walls obsolete and centralised state power.
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