Earth-41

Earth-41 is a reality in the multiverse.

History
Earth-41's history was identical to that of Earth-95 and real life until late 1941. Here, the United States was successfully alerted to the Pearl Harbor bombing in time to mitigate the damage caused by the attack. However, the United States entered the war anyway, as the mere fact that Japan tried to bomb Pearl Harbor at all served to sufficiently galvanize the country into going to war. World War II subsequently went the exact same way it did on Earth-95 and in most other universes besides.

Trivia

 * This Earth's designation is a reference to the year where it's history diverged from real life (1941).