Event:
Tennis champion Serena Williams beats Karolina Pliskova in her first game since leaving the Wimbledon games on July 1st due to illness; Williams will undergo future medical tests to confirm whether the illness was caused by a virus
More Notable Events on July 31:
1991 Senate votes to allow women to fly combat aircraft
1990 Bosnia-Hercegovina declares independence
1971 Apollo 15 astronauts take 6 hour electric car ride on Moon
1964 U.S. Ranger 7 takes 4,316 pictures before crashing on Moon
1949 Lightning strikes a baseball field in Florida, kills SS and 3rd baseman
