Timeline of Environmental History - 2,500,000 Ya

2,500,000 Ya

2.5 Ma

• Clima : Quaternary Ice Age : Begins
• Evo : Homo : Humans, neanderthals, homo erectus, and their direct ancestors
• Tech : Homonina Stone : Olduvai Gorge Mode 1 Industry

1.650 Ma

• Tech : Homo Erectus Stone : Acheulean Mode 2 Industry