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1 CE
EARTH FORMS
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2
FIRST BACTERIA ARCHEA
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3
PHOTOSYNTHESIS
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4
FIRST EUKARYOKES (NUCLEUS INSIDE CELL)
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5
START OF OXYGEN-RICH ATMOSPHERE
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6
MULTICELLULAR ORGANISM
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7
TERRESTIAL BIOCRUSIS
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8
HARD SHELLED ANIMALS IN OCEANS
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9
DINOSAURS
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10
GRASSES AND GRASS LAND
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11
LAND PLANTS
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12
HUMANS