Chronology of the universe
History and future of the universe / From Wikipedia, the free encyclopedia
For a graphical timeline, see Graphical timeline from Big Bang to Heat Death.
For the academic discipline which examines history from the Big Bang to the present day, see Big History. For chronology as timeline, see timeline of the early universe.
The chronology of the universe describes the history and future of the universe according to Big Bang cosmology.
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Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.[1]