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The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
The earliest known life forms on Earth may be as old as 4.1 billion years (or Ga) according to biologically fractionated graphite inside a single zircon grain in the Jack Hills range of Australia. [2] The earliest evidence of life found in a stratigraphic unit, not just a single mineral grain, is the 3.7 Ga metasedimentary rocks containing ...
Child, early human life; Other uses. My Early Life (book), 1930 autobiography by Winston Churchill; See also. Early Life Stage test; All pages with ...
Sir Isaac Newton at 46 in Godfrey Kneller's 1689 portrait. The following article is part of a biography of Sir Isaac Newton, the English mathematician and scientist, author of the Principia. It portrays the years after Newton's birth in 1643, his education, as well as his early scientific contributions, before the writing of his main work, the Principia Mathematica, in 1685. Overview of Newton ...
Early life and career of Abraham Lincoln. Abraham Lincoln was born on February 12, 1809, in a one-room log cabin on the Sinking Spring farm, south of Hodgenville in Hardin County, Kentucky. His siblings were Sarah Lincoln Grigsby and Thomas Lincoln, Jr. After a land title dispute forced the family to leave in 1811, they relocated to Knob Creek ...
[17] [16] Early in Biden's life, the family relocated to a "four-bedroom Dutch colonial in a Boston suburb, with plenty of money and perks to fly back to Scranton to visit the Finnegans whenever they wanted" so that Joe Sr. could run Sheen Company's branch office in Boston; Biden's sister, Valerie was born there in 1945. [17]
Charles Robert Darwin FRS FRGS FLS FZS JP [5] (/ ˈdɑːrwɪn / [6] DAR-win; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, [7] widely known for his contributions to evolutionary biology. His proposition that all species of life have descended from a common ancestor is now generally accepted and ...
Early life and career of Barack Obama. Barack Obama, the 44th president of the United States, was born on August 4, 1961, in Honolulu, Hawaii [1] to Barack Obama, Sr. (1936–1982) (born in Oriang' Kogelo of Rachuonyo North District, [2] Kenya) and Stanley Ann Dunham, known as Ann (1942–1995) (born in Wichita, Kansas, United States).