Timelines of the past


 * 542,000,000 B.C. (Precambrian era)
 * 300,000,000 B.C. (Early Paleozoic era)
 * 250,000,000 B.C. (Late Paleozoic era)
 * 130,000,000 B.C. (Early Mesozoic era)
 * 100,000,000 B.C. (Middle Mesozoic era)
 * 65,000,000 B.C. (Late Mesozoic era)
 * 20,000,000 B.C. (Early Cenozoic era)
 * 1,000,000,000 B.C. (Middle Cenozoic era)
 * 40,000 B.C. (Late Cenozoic era)
 * 30,000 B.C. (Last Glacial Period)
 * 25,000 B.C. (Ice Age)
 * 20,000 B.C. (Copper Age)
 * 15,000 B.C. (Bronze Age)
 * 10,000 B.C. (Stone Age)
 * 8,000 B.C. (Ancient Egypt)
 * 6,000 B.C. (Ancient Rome)
 * 4,000 B.C. (Ancient Vietnam)
 * 3,000 B.C. (Ancient China)
 * 1,000 B.C. (Ancient Greece)
 * 20 B.C. (Early modern period)
 * 10 B.C. (Middle modern period)
 * 5 B.C. (Late modern period)