Prime Universe
According to Sylvester Shoebill, the Prime Universe was so named because “[its] representative was first in line at the registration office when the Council of Frogs put together their little Doomsday Book”. Prime-adjacent universes were so named for their similarities to this universe.
Contents
It included a version of the Earth, inhabited by a number of coexisting sapient species, including humans as well as several anthropomorphic animal species including shoebills, (PROSE: The Grand Multiverse Hotel) cockatoos, chickens, and ducks. (PROSE: The Interdimensional Tavern)
There were many other inhabited planets in this universe, including the one that was home to Lilathia and Brutus. (PROSE: Marksmanship-522 and the Multi-Dimensional Race)
History
Ancient history
A version of Atlantis existed on the Prime Earth in ancient times, and was believed to have possessed advanced technology. (PROSE: The Strangely-Colored Secret Societies)
19th century
Victorian London was home to versions of Sherlock Holmes and his associates, as well as to Sexton Blake. (PROSE: The Time of the Toymaker)
20th century
In the 20th century, a malevolent organisation called the First Horde sought to rediscover the ruins of Atlantis and use its technological secrets to take over the world. The Strangely-Colored Secret Societies came into existence as offshoots of the First Horde. (PROSE: The Strangely-Colored Secret Societies)
In 1960, a scientist from the Prime Universe invented the Clockwork Cherubs, who, in the form of the Crew of the Copper-Colored Cupids, later relocated to a pocket universe of their own, the Cupid Homeworld. (PROSE: The Grand Multiverse Hotel)
21st century
In 2019, an interdimensional Rift appeared in the headquarters of the Faction of the Fooling Fish (one of the Strangely-Colored Secret Societies), linking the Cupid Homeworld and the Prime Universe directly. (PROSE: The Faction of the Fooling Fish)
Also that year, an anthropomorphic cockatoo or chicken from the Prime Earth and his hapless waterfowl companion fell through a dimensional warp in the Prime Universe's Time Vortex, and ended up in the Void. They parked the broken machine at the Interdimensional Tavern where the inventor stayed to guard it while his friend went on an adventure through the Void to find a piece which had become detached from the vehicle. While he was waiting, the inventor met Bibliophile-962 and other members of the Crew of the Copper-Colored Cupids' Department of Documentation, who'd taken a trip to the Tavern on their lunch break to help with the writing of a Cupid Fact File on the Tavern. (PROSE: The Interdimensional Tavern)
Later, the Crew sent Marksmanship-522 to romanticise the last two inhabitants of an alien planet “a few light-years away” from the Prime Earth, Lilathia and Brutus. They were the last two still holding onto an ancient feud between their species, long after the rest of both populations had left the planet behind. They both possessed pan-dimensional speedsters, and, with Marksmanship roped into acting as their referee, they set out on a Cross-Dimensional Grand Prix to finally determine a final winner to the war. The disturbances to reality caused by the faster-than-light movement of the speedsters briefly caused the reality of a “small coastal town” on Earth to “tear asunder” as the ships passed it by on their way to gaining enough momentum to break through into the Void, only for the damage to repair itself as the ships left. (PROSE: Marksmanship-522 and the Multi-Dimensional Race)
When they endeavoured to bring a mysterious old man to his home universe (whose designation he didn't know), Larrikin-1029 and Dandy-432 decided to first take him to the Prime Universe in Pessimist's Fog Ship, as he looked to them like he might be a Prime Universe denizen. (PROSE: The Mad Cupid of the Euclidean Plane)