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13.8 billion years ago , the universe vegan as a singe point , which rapidly expanded
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3 seconds after the Big Bang , the nuclei of H and He started forming
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10,000 years after the big bang , the universe was mostly radiation
(pure energy) -
30,000 years after the Big Bang , the universe had cooled and expanded enough for actual H and He atoms to form.
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300 million years after the Big Bang , The H and He gas condensed to create the stars
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9 billion years after the Big Bang (4.8 billion years ago), our star formed
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Debris around the collect , into planets including forming earth
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Earth cools down and life begins