Zodiac Empire

The Sol Vhenan Kheinven, also known as the Zodiac Empire and now best known simply as the Old Empire, was a nation which controlled the vast majority of the known world for over two millenia. The Empire was originally founded in Sol Venail, and invaded Var Venail at the start of the 2nd milennium of the Old Age. It was ruled by elves, and had varying levels of tolerance towards other species over the course of its history. Its last contact with Var Venail marks the first year of the Calendar.
The first Zodiac ships arrived on the shores of Var Venail around the year 2200 of the Old Age. The much superior magical aptitudes of the ancient elves and their technological prowess allowed them to quickly overrun the divided human, dwarven and goblin nations. The cities of Onanelh, Sil Hur and Sargot were founded by the elves to serve as regional capitals for their holdings in Var Venàil. 
By the late 2nd millennium of the Old Age, many of the policies of equality of other races were repealed. This caused major unrest among both the indigenous population of Var Venàil as well as many elves which had started meddling with the local populations, especially humans. These elves would later come to be known as Var Vhenan (Red elves). In the 6th century of the Old Age, the goblin-elven interbreeding gave rise to a new race: orcs. Due to numerous crises back in Sol Venail, the Empire started progressively withdrawing from Var Venail beginning in the 4th century OA. By the first year of the new age, the Empire had completely abandoned the continent, and all contact was lost with the mythical city of Narahuën. 
From its arrival to its departure from Var Venàil, the Empire had five rulers. They were: Aislin I the Conqueror (~2350 OA - 1912 OA), Varian I the Wise, also known as the Good (1912 OA - 1368 OA), Morien the Foolish (1368 OA - 795 OA), Varian II the Just (795 OA - 498 OA) and Aislin II (498 OA -? NA). It is unclear if the Empire existed before Aislin I, and if it continued existing after its departure from the continent.