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The wheel is often credited with being one of the first inventions from early humans. But in the grand scheme of things, it is a relatively young innovation. The Ancient Mesopotamians in modern-day Iraq were the first to use the wheel about 5,500 years ago, but by then, countless inventions had already been thought up by humans that we still use today. From booze to boats, here are some of the most important inventions that predate the wheel.
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