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ONE DAY AT A TIME....1/3/23

Updated: Aug 3, 2023

4.6 billion years ago the earth was formed

4.4 billion years ago the oceans began

3.9 billion years ago the first life appeared

1.5 billion years ago oxygen became present

700 million years ago single celled animals evolved

530 million years ago fish started swimming

400 million years ago land plants began growing

350 million years ago land vertebrates came into being

225 million years ago dinosaurs roamed the earth

65 million years ago they became extinct

130,000 years ago humans evolved

It took 66 years to land on the moon after the first airplane flight


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