Aeniith itself is a planet—a cohesive world in a fictional universe. The basic layout of Aeniith includes two lateral hemispheres. Just as the concepts of “eastern” and “western” hemispheres of the Earth are based on an arbitrarily drawn line, so are the two hemispheres of Aeniith. The “western” hemisphere is known as Keta. This includes two major continents, Quarios in the south, and Ei in the north. The name Keta means “cradle” in Gotêvi (also known as Gotevian or Gotêvinur), one of the languages spoken in Quarios and Ei.
The “eastern” hemisphere is known as Elta. Elta includes the continents Izoi, Naga, Arcuna, and Hizai.
Throughout Aeniith, there are various nations, countries, and cultural groups of different species of humanoids. The main species are as follows:
- Amelae (singular Amel): these are the most physiologically “human-like” of the intelligent humanoids species of Aeniith. They live in Keta and Elta. They are also the most internally diverse species with regard to physical differences. Well known nations of Amelae are Quarios and Ei (made up of the Gotêvi and Lomi cultures), Orikrindia (the island east of Ei), the Arshi of Arcuna, and the Teg of southern Quarios.
- Zuna: the Zuna live primarily in Elta, and are notable for being larger than most other species. They have higher sexual dimorphism, with the females typically being larger than the males. Well known nations of Zuna are the Tosi, Selupa, and Karkin.
- Ríli (singular Ríla): these are some of the smallest of the peoples of Aeniith. They have greyish skin and typically stand 145-160cm tall. They are native to Izoi in Elta
- Bae (singular Baa): the Bae are the most unique from the other species of Aeniith. They have physiological systems that none of the other peoples share, such as a separate circulatory system, low level telepathic abilities, the ability to absorb electricity from the nervous systems of others species into their own, very long life spans (800-3000 years, depending on the subspecies) and six fingers on each hand. They are unable to successfully breed with any other groups beyond their own. Because of their marked physiology, there are many theories across Aeniith as to their origins, although none has been proven. They are divided into several subspecies: Mei, Nonil, Megana, Quiluma, and Nirfai, which tend to have self-contained cultural groups. They live primarily in Keta, but some groups have traveled to Elta, most notably the Clussimeth (sometimes called “vampires” of the Bae), an offshoot of Nirfai, which live on Izoi. The term Bae is actually an exonym (name given to a group by another outside group) that is a Gotevian word, the plural of the word baa, meaning vaguely ‘spirit’. The Baen word for themselves is Iemir or ‘the people’. The singular form of this word is Iem or Em.
Amongst the peoples of Aeniith, interbreeding is possible for some. The most common by far is that between Amelae and Zuna. They are probably the most physiologically similar of any two groups. Many people of mixed Amel and Zuna heritage live in Elta especially (due to this being the side of the planet where almost all Zuna live), and some cultural groups exist that are totally integrated and consist of Zuna, Amelae, and many degrees of mixed-heritage people. One such nation is that of the Keresn.
Other species may occasionally produce children together, but it is far less common than the Amel/Zuna. A few Ríla/Zuna pairings have produced children, but they are not common and not well known. The Bae, as mentioned above, cannot reproduce with any other species of Aeniith, though are able to do so within their own subgroups (Mei, Megana, etc.).