Two pressure cooker bombs were set off at the Boston Marathon near the finish line, killing three people and injuring another two hundred and sixty-four people. The suspected bombers were named as Dzhokar and Tamerlan Tsarnaev. Police eventually chased down the suspects during a confrontation in which Tamerlan was run over by Dzhokar while trying to escape. Dzhokar was found hiding in a residential area on April 19th and police took him into custody after a stand off.

Jackie Robinson, becomes the first African American player in Major League Baseball when he steps onto Ebbets Field in Brooklyn to compete for the Brooklyn Dodgers.