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SDS developed from the youth branch of a socialist educational organization known as the League for Industrial Democracy (LID). LID itself descended from an older student organization, the Intercollegiate Socialist Society, founded in 1905 by Upton Sinclair, Walter Lippmann, Clarence Darrow, and Jack London.
Katherine Johnson (née Coleman; August 26, 1918 – February 24, 2020) was an American mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights.
Knowledge is the primary subject of the field of epistemology, which studies what we know, how we come to know it, and what it means to know something. Defining knowledge is an important aspect of epistemology, because it does not suffice to have a belief; one must also have good reasons for that belief, because otherwise there would be no reason to prefer one belief over another.
American Sign Language (ASL) is a natural language that serves as the predominant sign language of Deaf communities in the United States and most of Anglophone Canada.ASL is a complete and organized visual language that is expressed by facial expression as well as movements and motions with the hands.
It is the oldest gay student organization in the world, founded as the Student Homophile League in 1967 by students including lifelong activist Stephen Donaldson.   Columbia University campus military groups include the U.S. Military Veterans of Columbia University and Advocates for Columbia ROTC.
Groups of deaf people have used sign languages throughout history. One of the earliest written records of a sign language is from the fifth century BC, in Plato's Cratylus, where Socrates says: "If we hadn't a voice or a tongue, and wanted to express things to one another, wouldn't we try to make signs by moving our hands, head, and the rest of our body, just as dumb people do at present?"
Ronald David Laing (7 October 1927 – 23 August 1989), usually cited as R. D. Laing, was a Scottish psychiatrist who wrote extensively on mental illness – in particular, the experience of psychosis.
A Meeting in the Royal Danish Academy of Sciences and Letters is a monumental 1897 oil-on-canvas group portrait by Peder Severin Krøyer, depicting the membership of the Royal Danish Academy of Sciences and Letters during one of its meetings in the Prince's Mansion in Copenhagen.