Event:
Tennis pro Serena Williams beats Agnieszka Radwanska in the Women's Singles final at the 2012 Wimbledon Championships
More Notable Events on July 7:
1987 Oliver North began public testimony at Iran-Contra hearing
1981 1st solar-powered aircraft, Solar Challenger, crosses English Channel
1981 Sandra Day O'Connor nominated for the Supreme Court
1930 Construction begins on Boulder Dam
1550 Chocolate introduced
