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History (derived from Ancient Greek ἱστορία (historía) 'inquiry; knowledge acquired by investigation') [1] is the systematic study and documentation of the human past. [2] [3] The period of events before the invention of writing systems is considered prehistory. [4] ". History" is an umbrella term comprising past events as well as the ...
human history. 1. The complete narrative of humanity's past, generally as reckoned from the emergence of anatomically modern humans c. 300,000 years ago to the present day (though sometimes inclusive of much earlier periods in human evolution ), and thereby encompassing both prehistory and written history. 2.
Thesaurus. A thesaurus ( pl.: thesauri or thesauruses ), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where you can find different words with same meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms ...
The Historical Thesaurus of English ( HTE) is the largest thesaurus in the world. It is called a historical thesaurus as it arranges the whole vocabulary of English, from the earliest written records in Old English to the present, according to the first documented occurrence of a word in the entire history of the English language.
Human history. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers. They migrated out of Africa during the Last Glacial Period (Ice Age) and had populated most of the Earth by the time the Ice Age ended 12,000 years ago. Soon afterward, the Agricultural Revolution began in the fertile river valleys ...
Historian. Herodotus ( c. 484 – c. 425 BC) was a Greek historian who lived in the fifth century BC and one of the earliest historians whose work survives. A historian is a person who studies and writes about the past and is regarded as an authority on it. [1] Historians are concerned with the continuous, methodical narrative and research of ...
Primary source. In the study of history as an academic discipline, a "primary source" (also called an "original source") is a first hand account of events by someone who lived through them. "Primary sources were made during the historical period that is being investigated." [3]
Ancient history is a time period from the beginning of writing and recorded human history through late antiquity. The span of recorded history is roughly 5,000 years, beginning with the development of Sumerian cuneiform script and continuing until the expansion of Islam in late antiquity .