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https://en.wikipedia.org/wiki/Category:Obsolete_occupations
 

Operation Eagle Claw was a failed operation by the United States Armed Forces ordered by U.S. President Jimmy Carter to attempt the rescue of 52 embassy staff held captive at the Embassy of the United States, Tehran on 24 April 1980.
The operation, one of Delta Force's first,[1] encountered many obstacles and failures and was subsequently aborted. Eight helicopters were sent to the first staging area called Desert One, but only five arrived in operational condition.[2] One had encountered hydraulic problems, another was caught in a sand storm, and the third showed signs of a cracked rotor blade. During the operational planning, it was decided that the mission would be aborted if fewer than six helicopters remained operational upon arrival at the Desert One site, despite only four being absolutely necessary.[2] In a move that is still discussed in military circles, the field commanders advised President Carter to abort the mission, which he did.[3]

The Battle of Red Cliffs, also known as the Battle of Chibi, was a decisive naval battle in the winter of AD 208–209 at the end of the Han dynasty, about twelve years prior to the beginning of the Three Kingdoms period in Chinese history.[4] The battle was fought between the allied forces of the southern warlords Sun Quan, Liu Bei, and Liu Qi against the numerically superior forces of the northern warlord Cao Cao. Liu Bei and Sun Quan frustrated Cao Cao's effort to conquer the land south of the Yangtze River and reunite the territory of the Eastern Han dynasty.

Gamergate or GamerGate (GG)[1] was a loosely organized misogynistic online harassment campaign and a right-wing backlash against feminism, diversity, and progressivism in video game culture.[2][3][4] It was conducted using the hashtag "#Gamergate" primarily in 2014 and 2015.[1][5][6][7] Gamergate targeted women in the video game industry, most notably feminist media critic Anita Sarkeesian and video game developers Zoë Quinn and Brianna Wu.[8][9][10][11][12]

In legal history, an animal trial was the criminal trial of a non-human animal. Such trials are recorded as having taken place in Europe from the thirteenth century until the eighteenth. In modern times, it is considered in most criminal justice systems that non-human animals lack moral agency and so cannot be held culpable for an act.

At a minimum, a screw drive is a set of shaped cavities and protrusions on the screw head that allows torque to be applied to it.[1][2] Usually, it also involves a mating tool, such as a screwdriver, that is used to turn it. Some of the less-common drives are classified as being "tamper-resistant".