events

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Geologic Timelines

 * Event || Years before present ||  ||
 * Present || 0 ||
 * Modern man || 10,000 ||
 * First use of fire || 500,000 ||
 * Homo erectus || 1,300,000 ||
 * Oldest stone tools || 1,600,000 ||
 * Beginning of Quaternary period (end Tertiary/Neogene) || 1,800,000 ||
 * Australopithecus || 3,000,000 ||
 * Beginning of Tertiary/Neogene period (end Paleogene) || 23,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Collision of India with Asia || <span style="font-family: Arial Narrow,sans-serif">40,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Start of global cooling (to present day) || <span style="font-family: Arial Narrow,sans-serif">40,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early primates || <span style="font-family: Arial Narrow,sans-serif">57,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Alps form || <span style="font-family: Arial Narrow,sans-serif">60,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Tertiary/Paleogene period (recent life) || <span style="font-family: Arial Narrow,sans-serif">65,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Dinosaurs became extinct || <span style="font-family: Arial Narrow,sans-serif">65,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Rocky Mountains form || <span style="font-family: Arial Narrow,sans-serif">80,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Cretaceous Period begins (Jurassic ends) || <span style="font-family: Arial Narrow,sans-serif">140,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early flowering plants || <span style="font-family: Arial Narrow,sans-serif">150,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early birds and mammals || <span style="font-family: Arial Narrow,sans-serif">180,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Opening of Atlantic Ocean || <span style="font-family: Arial Narrow,sans-serif">200,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Jurassic Period begins (end Triassic) || <span style="font-family: Arial Narrow,sans-serif">208,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">First dinosaurs || <span style="font-family: Arial Narrow,sans-serif">215,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Triassic Period begins || <span style="font-family: Arial Narrow,sans-serif">245,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Final assembly of Pangaea || <span style="font-family: Arial Narrow,sans-serif">280,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Permian period (end Carboniferous/Pennsylvanian) || <span style="font-family: Arial Narrow,sans-serif">286,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early trees, formation of coal deposits || <span style="font-family: Arial Narrow,sans-serif">318,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Carboniferous/Pennsylvanian period (end Mississippian) || <span style="font-family: Arial Narrow,sans-serif">320,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">First reptiles || <span style="font-family: Arial Narrow,sans-serif">340,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Carboniferous/Mississippian period (end Devonian) || <span style="font-family: Arial Narrow,sans-serif">360,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">First insects || <span style="font-family: Arial Narrow,sans-serif">400,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Devonian period (end Silurian) || <span style="font-family: Arial Narrow,sans-serif">408,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Silurian period (end Ordovician) || <span style="font-family: Arial Narrow,sans-serif">440,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early land plants || <span style="font-family: Arial Narrow,sans-serif">450,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early fish || <span style="font-family: Arial Narrow,sans-serif">490,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Ordovician period (end Cambrian) || <span style="font-family: Arial Narrow,sans-serif">510,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early shelled organisms || <span style="font-family: Arial Narrow,sans-serif">544,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Cambrian period (end of Precambrian time) - rise of multicellular organisms || <span style="font-family: Arial Narrow,sans-serif">544,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Paleozoic (ancient life) Era || <span style="font-family: Arial Narrow,sans-serif">544,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Phanerozoic (visible life) Eon (end Proterozoic) || <span style="font-family: Arial Narrow,sans-serif">544,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early multicelled organisms || <span style="font-family: Arial Narrow,sans-serif">700,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Breakup of early supercontinent || <span style="font-family: Arial Narrow,sans-serif">800,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">First known animals || <span style="font-family: Arial Narrow,sans-serif">1,200,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Formation of early supercontinent (Rodinia) || <span style="font-family: Arial Narrow,sans-serif">1,400,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Proterozoic (earlier life) Eon (end Archeon) || <span style="font-family: Arial Narrow,sans-serif">2,500,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Buildup of free oxygen in atmosphere || <span style="font-family: Arial Narrow,sans-serif">2,700,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Early bacteria & algae || <span style="font-family: Arial Narrow,sans-serif">3,400,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Oldest known Earth rocks || <span style="font-family: Arial Narrow,sans-serif">3,960,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Beginning of Archeon Eon || <span style="font-family: Arial Narrow,sans-serif">4,000,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Formation of Earth's atmosphere || <span style="font-family: Arial Narrow,sans-serif">4,200,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Formation of the Moon || <span style="font-family: Arial Narrow,sans-serif">4,500,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Precambrian time begins || <span style="font-family: Arial Narrow,sans-serif">4,600,000,000 ||
 * <span style="font-family: Arial Narrow,sans-serif">Origin of earth || <span style="font-family: Arial Narrow,sans-serif">4,600,000,000

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