This version of Earth is notable for having been invaded in 1897 by the Wellsians, the octopoid inhabitants of the neighbouring planet Mars — this war being instead a figment of the imagination of Herbert George Wells in Mickey Mouse and Donald Duck's home world. Although devastating, the Wellsian invasion of Earth was short-lived due to most of the Wellsian invasion force being wiped out by an epidemic of the common cold.
Interestingly, the Crew of the Copper-Colored Cupids's Fact File about the event suggests that this Earth, unlike the Prime Earth, has only one native sapient species, Homo Sapiens. Dragons also only existed as fairy stories, unlike in the Prime Universe, when, although they are often the subject of fairy tales, Dragons are well-documented to have existed as real beings throughout history.
Behind the scenes
This version of Earth was only ever featured in the 2019 story The Wellsians.