The origin of Germany is the East Francia, then the Holy Roman Empire. Germany was reunited in 1871. Germany lost both wars in the 20th century.
This is where most AGK videos take place in.
TheGKProducer's AGK series
In this series, Leopold and friends' homeplace location is Berlin, A School for Assholes, Annette Skateeta and any character with inappropriate and random last names lives in Scheisseland, and Tailsko and villains live in an inhabited land that go by the name of "Tailsko's World". Every state else outside Northeast Germany is named Berlin named after the creators (these cities have AGK characters from other universes, including the creators' mascots.) Meanwhile, Mr. and Mrs. Crowley live in Frankfurt.