What is Human history?
'''Human history''' is the study of what the entire [[human]] race did in the past. It includes the time from [[prehistory]] to the present day. It is different from [[natural history]]. == Development of the human species == {{Main|Human evolution}} Modern human beings are called ''[[Homo sapiens]]'' ('wise man'). They have existed for about 250,000 years. Biologists believe that ''Homo sapiens'' evolved in [[Africa]]. ''Homo sapiens'', lived at the same time as other ''[[species]]'' of human. These included ''Homo erectus'' ('standing man') and ''Homo neanderthalensis'' ('man from Neanderthal'). The [[wikt:theory|theory]] of human [[evolution]] says that modern humans, Neanderthals, and ''Homo erectus'' slowly developed from other earlier species of human-like creatures. ''Homo neanderthalensis'' are the first humans scientists discovered which were not ''Homo sapiens''. ''Homo neanderthalensis'' are usually called [[Neanderthal Man]]. They were discovered when the [[cranium]] of a [[skull]] was found in the Neanderthal Valley in 1856. It was different from a modern human skull so scientists believed it was from a new species.<ref>{{cite journal |author=Tattersall I, Schwartz JH |title=Hominids and hybrids: the place of Neanderthals in human evolution |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=96 |issue=13 |pages=7117–9 |year=1999 |pmid=10377375 |doi=10.1073/pnas.96.13.7117|pmc=33580 |bibcode=1999PNAS...96.7117T | quote =on the view that these distinctive hominids merit species recognition in their own right as '''Homo neanderthalensis''' (e.g., refs. 4 and 5), at least as many still regard them as no more than a strange variant of our own species, '''Homo sapiens''' (6, 7) |doi-access=free |issn=0027-8424}} Available [http://www.pnas.org/cgi/content/full/96/13/7117 on-line]</ref> Entire Neanderthal skeletons have been found in other places since then.<ref>{{cite web|url=http://anthropology.si.edu/humanorigins/ha/neand.htm|title=Human Ancestors Hall: Homo neanderthalensis}}</ref> When ancient stone tool