Before the days of high school kids going straight to the NBA and people leaving college early to play professional sports, athletes actually graduated from college. In fact, some of the most prolific athletes of the last 70 years graduated from college and went on to have amazingly successful careers as international superstars. The six basketball players on this list alone have 32 NBA championships combined. Olympic stars on the list won a total of 39 gold medals. NFL players on this list amassed a total of 14 NFL championships while most ranked in the top 10 players of all time. These are the greatest athletes of the 20th Century, and they did it all after attending college.