The most important inventions were invented by men. For example, millions of years ago, the wheel hadn't been invented. One day, some primitive guys were watching their wives drag a dead mastodon to the food-preparation area. It was exhausting work; the guys were getting tired just WATCHING. They then noticed some large, smooth, rounded boulders and had an idea: They could sit on the stones and watch! This was the first of a series of breakthroughs that ultimately led to the television, amirite?