When does Young Person's Guide to History return?

Adult Swim is an American adult-oriented television programming block that airs during the evening, prime time, and late-night dayparts. Launched on September 2, 2001, Adult Swim has frequently aired animated sitcoms, adult animation features, parody, satire, mockumentaries, sketch comedy, and pilots, with many of its programs being aesthetically experimental, transgressive, improvised, and surrealist in nature. Adult Swim operates a video game division known as Adult Swim Games.