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These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day. For events from c. 3200 BC – c. 500 see: Timeline of ancient history. For events from c. 500 – c. 1499, see: Timeline of post-classical history. For events from c. 1500, see: Timelines of modern history.
The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. 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.
Late modern period. For a timeline of events from 1801 to 1900, see Timeline of the 19th century. For a timeline of events from 1901 to 1945, see Timeline of the 20th century. For 1914–1918, see Timeline of World War I. For 1939–1945 see Timeline of World War II.
During this period the Quaternary glaciation began (about 2.58 million years ago), and continues to today. It has been an ice age , with cycles of 40–100,000 years alternating between long, cold, more glaciated periods, and shorter warmer periods – interglacial episodes.
The opinion caps off a years-long case — U.S. et al. v. Google — that resulted in a 10-week trial last year. The Department of Justice and a group of attorneys general from 38 states and ...
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. [4] [5] [6] Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.
January 16, 2020 – The first impeachment trial of President Donald Trump begins in the U.S. Senate. January 21, 2020 – The first patient in the United States is diagnosed with coronavirus. January 26, 2020 – Kobe Bryant, along with his daughter, Gianna, and 7 others, perish in a helicopter crash.
The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period . It includes brief explanations of the various taxonomic ranks in ...