History of the Earth By SangYoon 1 CE The Emergence of Water (4.2 Billion Years ago) 2 Emergence of the creature (3.9 Billion Years ago) 3 The emergence of prokaryotes (3.5 Billion Years ago) 4 Ice Age (2.9 Billion Years ago) 5 Emergence of the Oxygen (2.5 Billion Years ago) 6 Emergence of the Eukaryote (1.6 Billion Years ago) 7 The Emergence of Vertebrate in the Sea (500 Million Years ago) 8 Emergence of the Land Plants (400 Million Years ago) 9 The First Forest was made (400 Million Years ago) 10 Emergence of the Vertebrate with the legs on (300 Million Years ago) 11 Animals move from water to land (300 Million Years ago) 12 Emergence of reptile (300 Million Years ago) 13 Dinosaur (200 Million Years ago) 14 Emergence of the birds (100 Million Years ago) 15 Collision of Meteorite in Mexico (65 Million Years ago) 16 Extinction of Dinosaurs (65 Million Years ago) 17 Emergence of Mammals (63 Million Years ago) 18 Usage of Fire (1.4 Million Years ago) 19 Second Ice Age (70,000 Years ago) 20 Development of the Agriculture (11,000 Years ago) 21 Construction of the Pyramid (4,500 Years ago) 22 The development of modern science (1,543 Years ago) 23 1st industrial revolution (1,700 Years ago) 24 Invention of the Airplane (1,903 Years ago) 25 The beginning of the space age (1,957 Years ago) 26 Humans' first moon landing (1,969 Years ago)