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Quizlet made its first acquisition in March 2021, with the purchase of Slader, which offered detailed explanations of textbook concepts and practice problems, and eventually incorporated it into its paid platform, Quizlet Plus. [20] [21] [22] In November 2022, Quizlet announced a new CEO, Lex Bayer, the former CEO of Starship Technologies. [23]
McCarthyism, also known as the Second Red Scare, was the political repression and persecution of left-wing individuals and a campaign spreading fear of communist and ...
McCarthyism became a widespread social and cultural phenomenon that affected all levels of society and was the source of a great deal of debate and conflict in the United States. Investigating private citizens for alleged communist affiliations in government, private-industry and in the media produced widespread fear and destroyed the lives of ...
Even though support for McCarthyism was high, there were also many contrary voices to this abusive power of the government, with these five students being a prime example. Louise Derman-Sparks, who joined the Green Feather movement as a high schooler, said that "as a child of the McCarthy period, I was angry at the repression and also scared."
The Clay Mathematics Institute officially designated the title Millennium Problem for the seven unsolved mathematical problems, the Birch and Swinnerton-Dyer conjecture, Hodge conjecture, Navier–Stokes existence and smoothness, P versus NP problem, Riemann hypothesis, Yang–Mills existence and mass gap, and the Poincaré conjecture at the ...
McCarthyism was a period of intense anti-Communist suspicion in the United States that lasted roughly from the late 1940s to the late 1950s. Although associated with Senator Joseph McCarthy , it was a broad cultural and political phenomenon that also encompassed industry blacklists, the activities of the House Un-American Activities Committee ...
Though the main vein of McCarthyism ended in the mid-1950s when the 1956 Cole v. Young ruling severely weakened the ability to fire people from the federal government for discriminatory reasons, [ 84 ] the movement that was born from it, the Lavender Scare, lived on.
A mathematical problem is a problem that can be represented, analyzed, and possibly solved, with the methods of mathematics. This can be a real-world problem, such as computing the orbits of the planets in the solar system, or a problem of a more abstract nature, such as Hilbert's problems .