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They made the wheel simply by taking a potter's wheel and using it to make their carts more easy to push/ pull.

They also made up time by splitting it into units of 60. (60 seconds and 60 minutes)

They came up with sails so trading with other countries would be simple.

Mathematics was another thing they made so keeping track of time or how many crops grow that season was recorded.

They had to learn how to write so they knew what crops they were talking about or even how to make something to write with.

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16y ago

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