Did the greeks and romans invent everything

No, the greeks and romans did perhaps invent the basis of alot of the stuff we use to day but they did not invent everything

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Explanation:

Greek- The Greeks invented the waterwheel used to power the mill and the toothed gears used to transfer the power to the mill.

Roman- The Romans did not invent drainage, sewers, the alphabet or roads, but they did develop them. They did invent underfloor heating, concrete and the calendar that our modern calendar is based on.

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