Look back at the long and storied career of disgraced American cyclist Lance Armstrong.
A triathlon champion by age 16, Lance Armstrong burst onto the cycling scene in 1992, when he joined the Motorola professional cycling team and won the World Championship in 1993. He scored a number of victories in Europe during the early 1990s, including the stage to Limoges in the Tour de France.
What's behind the tradition of turning our clocks ahead each spring?
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