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The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras, which in turn are divided into periods, which are further divided into epochs . Eon.
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 ...
Gallery. Some of the photos are depicted below. Bloody Saturday – Battle of Shanghai. Cavalry camp near Balaklava – Crimean War. The Valley of the Shadow of Death – Siege of Sevastopol, Crimean War. X-ray by Wilhelm Röntgen. View from the Window at Le Gras. The Horse in Motion. Migrant Mother.
Baton Rouge, Louisiana, United States. One of the most widely distributed photos of the abolitionist movement . [ s 3] Execution of the Lincoln Conspirators at Washington Arsenal. 7 July 1865. Alexander Gardner. Washington, D.C., United States. [ s 1] Portrait of Sir John Herschel.
The World We Live In. (Life magazine) The Age of Reptiles. Zallinger was asked to paint this panoramic mural in the Great Hall of the Peabody Museum of Natural History while a poor student at Yale. His working original was painted first on a 10-foot roll of rag paper. The mural made his career. In 1953, Zallinger, then a famous artist and ...
Life’s Common Ancestor Lived 4.2 Billion Years Agoblackred - Getty Images. "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." All life on Earth can be ...
View from the Window at Le Gras 1826 or 1827, believed to be the earliest surviving camera photograph. [ 1] Original (left) and colorized reoriented enhancement (right). The history of photography began with the discovery of two critical principles: The first is camera obscura image projection, the second is the discovery that some substances ...
ATS-3. First full-disk "true color" [ 41] picture of the Earth; [ 42] subsequently used on the cover of the first Whole Earth Catalog. [ 43][ 42] December 21, 1968. Apollo 8. First full-disk image of Earth from space taken by a person, probably by astronaut William Anders. [ 44] December 24, 1968.