Toys are known to mankind from ancient times, they were found by archeologists at excavation of the remains of ancient civilizations. The most ancient toys were made of available natural materials, stones, sticks and clay. In Ancient Greece and Ancient Rome children played with dolls made of wax and a terracotta. Today and at all times wood toys were appreciated, but with the advent of plastic, production of cheaper plastic toys began. Previously, toys were hand-made, and today there is a huge industry of production of toys.