Who invented toys? It's hard to believe millions, maybe billions of people have invented toys. Most of these people are kids. Kids invent toys from all kinds of materials, such as stones, sticks, paper, even clothes. And these toys are in different shapes; round, square, and so on.
Sometimes adults invent toys, too, but in many cases (在许多情况下) , they don't actually invent the toy but take a toy that has been invented somewhere before and make it popular. Take the yo-yo for example. Yo-yos have been around for thousands of years. We know this because yo-yos have been found in ancient graves (坟墓) in some countries. This is how we know that stone yo-yos were used back in ancient Greece. In the 1800s, they became very popular as children's toys, first in England and then in the United States. Then people got tired of them for a while until Donald Duncan went into the yo-yo business. He hired "yo-yo men" to demonstrate (示范) and sell yo-yos door to door. This way, yo-yos got popular little by little. Today the name Duncan still goes with yo-yos, one of the most popular toys around the world.
Another example is teddy bears. Teddy bears, one of the most popular toys, were named after a president of the United States, although he didn't invent them. President Teddy Roosevelt was a hunter (猎人) . He was good at hunting and on one of his hunting trips he had met a bear. That led to editorial (社论) cartoons showing pictures of President Roosevelt and a cute little bear. Somehow that led to cute, sewed (缝制的) bears for little kids to play with.
