Prehistory of Java Indonesia begun since about a million years ago. Evidence by the finding of Megantrophus Paleojavanicus (big man from Ancient Java) at Sangiran in 1941 by G.H.R Von Koenigswald. Around 600,000 years ago, since paleolitikum, Java Indonesia also inhabited by Homo erectus paleojavanicus. After Homo erectus paleojavanicus era, Java is inhabited by Homo erectus soloensis. The fossils were found in the Bengawan Solo river, near Sragen regency, Central Java, in 1941.