c. 250 BCE
Science
Sicily
Archimedes screw and mechanics
Water-raising screws, levers, pulleys and the principle of buoyancy.
Why it mattered
Physics applied deliberately to machine design.
Antiquity
250 BCE
2 recorded milestones at this point in the record.
c. 250 BCE
Society
South Asia
Ashoka's edicts and public welfare
The Mauryan emperor inscribed pillars promising medical care, wells and shade trees for people and animals.
Why it mattered
An early articulation of the state's duty of welfare and tolerance.
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