The Allied occupation of Japan following World War II brought about major political and social changes, including the drafting of a new constitution and the abolition of the samurai class.

The Tokyo Marathon, first held in 2007, has become one of the most popular marathons in the world, with over 30,000 runners participating each year.

The All Japan High School Soccer Tournament, held annually since 1921, is one of the most prestigious high school soccer tournaments in the world.