Other forms of vanadium in the +5 oxidation state mentioned in this review derive from the vanadate ion (VO3) and include ammonium meta vanadate (NH4VO3), sodium metavanadate (NaVO3), and sodium orthovanadate (Na3VO4).
Most famous historical documents are either laws, accounts of battles (often given by the victors or persons sharing their viewpoint), or the exploits of the powerful. Though these documents are of historical interest, they do not detail the daily lives of ordinary people, or the way society functioned.
History (from Greek á¼±ÏÏÎ¿ÏÎ¯Î±, historia, meaning inquiry, knowledge acquired by investigation) is the study of the past as it is described in written documents. Events occurring before written record are considered prehistory.