Australopithecus afarensis appears (4-1.8mya)

Homo habilis appears (2.4-1.5mya)

Homo erectus appears (1.8mya-70tya)

Homo antecessor appears (1.2mya-500tya)

Homo heidelbergensis appears (800-300tya)

Homo neanderthal appears (400-28tya)

Homo floresiensis appears (190-50tya)

Homo sapien appears (300tya-present day)

First cities (5,500-4,000 years ago)

Ancient Egypt (4,500-2,000 years ago)

Ancient Greece (2,400 years ago)

Ancient China (2,200 years ago)

Ancient Rome (2,000 years ago)

The Black Death (1347)

World War 1 (1914)

World War 2 (1939)

First person on the moon (1969)

Cells are discovered (1665)

The Aztecs (550 years ago)

First use of fire (1.85mya)