The White House tradition dates back to at least President Andrew Johnson, when he hosted the Brooklyn Atlantics and Washington Nationals amateur baseball clubs in August 1865, as ESPN notes . President Ronald Reagan largely is considered the first commander in chief to regularly honor teams. Now, about a dozen professional, . national and college sports organizations visit 1600 Pennsylvania Avenue each year. The events allow players to meet the sitting president (either Democrat or Republican), tour the building and be recognized as world champions, not to mention the photo opp, presentation of a personalized jersey, helmet or other memorabilia to the United States leader...and the list of jokes.