Calvin "Silent Cal" Coolidge. There's evidence that he was like this to some extent naturally but that he exaggerated it even further because he liked being thought of that way, adhering to Mark Twain's famous adage "It is better to remain silent and be thought a fool than to speak up and remove all doubt."
In actuality, Coolidge was a skilled public speaker, but had little taste for the kind of endless, pointless small talk that goes on at parties. When asked why he nonetheless attended so many Washington dinner parties, he responded "Got to eat somewhere."
(One... probably apocryphal... story says a woman came up to him at a party and told him she'd just bet that she could get him to say more than two words. He replied, "You lose.")
Ironically, "Silent Cal" was the first US President to appear in a motion picture with sound.
S. Hurok was a famous impresario of the twentieth century.
Andy Warhol
The possessive form of the singular noun century is century's.example: Who was the twentieth century's most famous or infamous person?
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Emma Goldman was a revolutionary in the 20th century. You could consider Rosa Parks a revolutionary for standing up to racism and being arrested.
Thomas Merton was a famous writer and trappist monk in the early twentieth century. His most famous book was "The Seven Storey Mountain" released in 1948.
In the early part of the Twentieth Century, the A. L. Burt company published the Tarzan novels of Edgar Rice Burroughs. By 1916, the company had published three of the Tarzan novels with more to come later.
Yes, there are portraits available of Australia's most famous aviator of the twentieth century. See the related links.
Indira Gandhi was the first woman prime minister of India. She held that office until she was assassinated in 1984.
MGM, Universal Studios, Warner Brothers, RKO (now defunct) Twentieth Century Fox
Martin luther king jr and Harrison Pham
Gloria Estefan is a Cuban-born musician, famous for her amazing voice. Celia Cruz is another famous Cuban musician. and was one of the most popular salsa singers of the twentieth century.