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The Ca-Al-rich inclusions, which formed 2 million years before the chondrules, [1] are a key signature of a supernova explosion. c. 4,567 ±3 Ma – Rapid collapse of hydrogen molecular cloud , forming a third-generation Population I star , the Sun , in a region of the Galactic Habitable Zone (GHZ), about 25,000 light years from the center of ...
The first eon in Earth's history, the Hadean, begins with the Earth's formation and is followed by the Archean eon at 3.8 Ga. [2]: 145 The oldest rocks found on Earth date to about 4.0 Ga, and the oldest detrital zircon crystals in rocks to about 4.4 Ga, [34] [35] [36] soon after the formation of the Earth's crust and the Earth itself.
The remainder was the world-ocean known as Panthalassa ("all the sea"). All the deep-ocean sediments laid down during the Triassic have disappeared through subduction of oceanic plates; thus, very little is known of the Triassic open ocean. The supercontinent Pangaea was rifting during the Triassic—especially late in the period—but had not ...
Advertisement for Ansco Speedex Film, 1920. The company was founded in 1842 (pre-dating Kodak in the photography business) as E. Anthony & Co. (later E. and H. T. Anthony & Company, when Edward Anthony's brother officially joined the business) and became the Anthony & Scovill Co. in 1901, after a merger with the camera business of Scovill Manufacturing (Connecticut), founded by James Mitchell ...
Graph of world population over the past 12,000 years . As a general rule, the confidence of estimates on historical world population decreases for the more distant past. Robust population data exist only for the last two or three centuries. Until the late 18th century, few governments had ever performed an accurate census.
The history of immigration to the United States details the movement of people to the United States from the colonial era to the present day. Throughout U.S. history , the country experienced successive waves of immigration , particularly from Europe (see European Americans ) and later on from Asia (see Asian Americans ) and Latin America (see ...
The Adidas 1 was a running shoe made by German multinational corporation Adidas, introduced in early 2005.It was the second general consumer sneaker to incorporate a computer, [1] after the Adidas 'Micropacer' in 1984. [2]
Isaiah 1 is the first chapter of the Book of Isaiah, one of the Book of the Prophets in the Hebrew Bible, which is the Old Testament of the Christian Bible. [1] [2] In this "vision of Isaiah concerning Judah and Jerusalem", the prophet calls the nation to repentance and predicts the destruction of the first temple in the siege of Jerusalem.