500 BC Yo-yos were invented. The first yo-yos were made of                 wood, metal, and clay.

1500’s AD Pictures of yo-yos were found in Egyptian                      temples.

                  Hunters used yo-yos to hunt. They tied a rock to                      the end of a string and then threw the rocks at                      animals.

1789 Wealthy French people had yo-yos made of ivory and             glass.

1790’s Yo-yos were used as stress relievers on immigrant                ships.

1866 Yo-yos were first brought to the United States.

1920’s Yo-yos were made of wood with string tied around the                axle.

1928 Donald Duncan bought a yo-yo company from Pedro             Flores.

1946 Duncan’s company had lots of luck in Wisconsin where             they had to make 36,000 yo-yos and hour to keep up             with the country-wide demand for yo-yos.

1965 Duncan’s company goes bankrupt.

1974 Richard Nixon yo-yos at the opening of The Grand Ole             Opry in Nashville.

1985 A yo-yo is taken into space, but the astronauts could not             make the yo-yo "sleep" due to weightlessness.

1986 The Yomega Corporation comes out with a "yo-yo with             a brain." This yo-yo has a clutch return.

1992 The yo-yo goes back into space where astronauts make             a slow-motion yo-yo video.