Astronomical dating of works of art

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"More than 3.5 billion years ago, small single-celled organisms acquired the capacity to photosynthesize" "Plants were restricted to the aquatic world until three billion years later, the first uncontroversial evidence for life is found 2,700,000,000 years ago.

"It was the first plant to produce an extensive root system, so had a profound impact on soil chemistry".) 13,800,000,000 (13.8 billion) years ago The creation of the universe according to present estimates of "big bang" - "Stephen Hawkings and others...estimate between 18 and 11 billion with 13.8 being the closest estimation".The end-Frasnian extinction (the largest) about 375 million years ago.The about 365 million years ago during the Famennian.

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