jun 26, 1992 - Pros competed in the Olympics - Barcelona 1992
Description:
The 1992 U.S. Men’s Olympic basketball team, nicknamed the “Dream Team” for its impressive line-up of the biggest names in basketball—Michael Jordan, Charles Barkley, and Patrick Ewing to name a few—was the first time active NBA players were recruited for an Olympic team. The team crushed the competition as it made its way towards the final (winning all eight games) and ultimately defeated Croatia to bring home the gold medal. Still today, the Dream Team is widely celebrated as the greatest team ever assembled in any sport.
Added to timeline:

History of modern olympics
Date: