A Brief History of the Indianapolis 500

Women at the Wheel
Women were first allowed into the Speedway's pit areas in 1971, and began competing in 1977. Danica Patrick became one of the sport's biggest stars after her first race in 2005 (she finished fourth). Patrick is also the first woman to ever take the lead in the race. Above, Patrick talks with her car owner Michael Andretti during practice at the Indianapolis Motor Speedway in Indianapolis May 14, 2009.

• Photos: Formula 1
• Photos: The Kentucky Derby