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A black swan (Cygnus atratus) in Australia. The black swan theory or theory of black swan events is a metaphor that describes an event that comes as a surprise, has a major effect, and is often inappropriately rationalized after the fact with the benefit of hindsight. The term is based on a Latin expression which presumed that black swans did ...
The black swan (Cygnus atratus) is widely referenced in Australian culture, although the character of that importance historically diverges between the prosaic in the east and the symbolic in the west. The black swan is also of spiritual significance in the traditional histories of many Aboriginal Australian peoples
The black swan (Cygnus atratus) is a large waterbird, a species of swan which breeds mainly in the southeast and southwest regions of Australia. Within Australia, the black swan is nomadic, with erratic migration patterns dependent on climatic conditions. It is a large bird with black plumage and a red bill.
A perfect storm led to Bayesian sinking, experts say. The combination of unlikely factors that could have contributed to the ship's fate constituted a "black swan event," Matthew Schanck, chairman ...
Black swan theory; Dragon king theory; W. Flag of Western Australia This page was last edited on 25 July 2015, at 16:36 (UTC). Text is available under the ...
Map of Africa and the African diaspora throughout the world. The genetic history of the African diaspora is composed of the overall genetic history of the African diaspora, within regions outside of Africa, such as North America, Central America, the Caribbean, South America, Europe, Asia, and Australia; this includes the genetic histories of African Americans, Afro-Canadians, Afro-Caribbeans ...
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Southern African-American Family on Porch. African American genealogy is a field of genealogy pertaining specifically to the African American population of the United States. . African American genealogists who document the families, family histories, and lineages of African Americans are faced with unique challenges owing to the slave practices of the Antebellum South and North.