II. HUMAN ANCESTRY AND EVOLUTION. 1. Evolution of life on Earth. 4,100,000,000: earliest life on Earth: single-celled prokaryotic Archaea (Hadean Eon, 3.8-4.2 billion years ago) 3,500,000,000: photosynthesising bacteria amongst the Archaea (Archean Eon) 3,400,000,000: earliest atmospheric oxygen, present at low levels (Archean Eon) 3,200,000,000

17/05/2010 · The Stone Age (known to scholars as the Paleolithic era) in human prehistory is the name given to the period between about 2.5 million and 20,000 years ago. It begins with the earliest human-like behaviors of crude stone tool manufacture, and ends with fully modern human hunting and gathering societies.

14/03/2020 · History of Human Civilization. This is a rough history of human migration, advancement, and civilization. Some early years or dates may be a little uncertain but as a whole it shows a good comparison of events showing how we got to where we are today.

History. Timeline of Human History I: Prehistory to 1499. Timeline of Human History II: 1500-1799; Timeline of Human History III: 1800-1899; Timeline of Human History IV: 1900-1999; Timeline of Human History V: 2000-Present; The 100 Most Important Events in Human History; The 70 Greatest Battles of All Time; Where Have I Been?

However, the age of the oldest remains of the genus Homo is younger than this technological milestone, dating to some 2.8–2.75 million years ago in Ethiopia. The oldest known remains of Homo sapiens —a collection of skull fragments, a complete jawbone, and stone tools—date to about 315,000 years ago. Homo sapiens.