Homo sapiens: Early modern human or anatomically modern human.
Neanderthals: an extinct species of human that was widely distributed in ice-age Europe.
Erectus: Homo erectus is an extinct species of archaic human from the Pleistocene
Mesopotamia: a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent.
Fertile Crescent: a crescent-shaped region in the Middle East.
Fertile: producing or capable of producing abundant vegetation or crops; or able to conceive young or produce seed.
Sanitation: Sanitation refers to public health conditions related to clean drinking water and adequate treatment.
Slash: cut (something) with a violent sweeping movement.
Burn: flame or glow while consuming a material such as coal or wood.
Hope this helped!