The first wheel wasn't used for transportation. The wheel was first invented as a potter's wheel and was believed to have existed around 3500 BC. The wheel was used as a luxurious form of transportation for the wealthy, but was also used for irrigation, pottery making, and milling. The invention of the chariot and other important innovations in history were based on the invention of the wheel. The Mesopotamians built the first of wheel with steel and iron. O Because the wheel was round Mesopotamians used it on bikes O The wheel was used for irrigation, pottery making, and milling. O The Mesopotamians could not get the wheel to fit on chariots.