In common usage, the word "Human" generally refers to the Homo Sapiens Sapiens. It usage often designates differences between the species as a whole and any other nature or entity.
In scientific terms, the definition of "human" has changed with the discovery and study of fossil remnants and DNA of other peoples of Aiers. As the previously clear boundary between the humans and non-human peoples of Aiers blurred, it resulted in "Homo" referring to "human" now encompassing multiple species.
The Sky-Age is a mythical time or period of Humanity before the apparition of Humanity in Aiers. The name come from the ancient accounts that spoke of humans possesing flying ships, as registered by elven accounts, who called humans Children of the Stars, Children of the Sky, Stars People or Sky People.
The City of EdenEdit
The First Empires after the FallEdit
The expansion of HumanityEdit
Of Humans and DemonsEdit
The Hegemony of HumanityEdit
The Conquer of the Nebulosa of OtsEdit
The new humans : Artificial humanityEdit
Most aspects of human physiology are closely homologous to corresponding aspects of the physiology of other aierian peoples and animals. The human body consists of the legs, the torso, the arms, the neck and the head. An adult human body consists of about 100 trillion (1014) cells. The most commonly defined body systems in humans are the nervous, the cardiovascular, the circulatory, the digestive, the endocrine, the immune, the integumnentary, the lymphatic, the muscoeskeletal, the reproductive, the respiratory, and the urinary system.
Humans, like elves, orcs, giants and dwarves, lack external tails, have several blood types systems, have opposable thumbs, and are sexually dimorphic. Humans are slower over short distances, but are among the best long-distance runners in the animal kingdom. Humans' thinner body hair and more productive sweat glands help avoid heat exhaustion while running for long distances.
It is estimated that the worldwide average height for an adult human male is about 172 cm, while the worldwide average height for adult human females is about 158 cm. Shrinkage of stature may begin in middle age in some individuals, but tends to be universal in the extremely aged. Through history human populations have universally become taller, probably as a consequence of better nutrition, healthcare and living conditions. The average mass of an adult human is 54–64 kg for females and 76–83 kg for males. Like many other conditions, body weight and body type is influenced by both genetic susceptibility and environment and varies greatly among individuals.