the ups and downs of yo-yos

        Yo-yos were made far older than i thought according to the pamphlet they were originated about 3000 years ago in China. An also historical record of yo-yos showed that they were incorporated in greece culture long ago as well. As time was passing by, yo-yos were adopted by the aristocracy in the 1700s. they were fashionable symbols of wealth, and many of them were made by different kind of materials such as crystal, jade , ivory and so on. By that time, yo-yos were used to relieving tension for adults, and at the same time they were used by children as a plaything too. when i was younger i had a couples of yo-yos in different colors. they were very popular in my chilhood. i did not know all the yo-yos' tricks, but i knew how to make them sleep for a little while.