1795
Society
France
The metric system
Revolutionary France defined the metre and kilogram from nature, not from kings.
Why it mattered
A universal measurement language for science and trade.
Industrial Age
1795
2 recorded milestones at this point in the record.
1795
Agriculture
France
Food canning
Nicolas Appert sealed and heated food in glass, later tin, to preserve it.
Why it mattered
Detached diet from season and distance.
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