Although it’s impossible to highlight all the inventions that changed history, some stand out as undeniably transformative. The list of life-changing inventions is virtually endless, but here are five that unmistakably impacted humanity.
Some people consider the wheel to be the greatest invention of all time. The concept of a rolling cylinder wasn’t impossible to imagine, but it was challenging to make. In order to work, there needed to be a fixed axle. To make a fixed axle with revolving wheels, the holes in the wheels and the ends of the axle needed to be smooth and round. To ensure good rotation, axles needed just the right amount of tightness to fit correctly into the wheel holes. By the time the wheel was created by the Sumerian people in Mesopotamia, basket weaving, sewing needles, woven cloth, and the boat had already been invented. The wheel led to other innovations, including ...
