Walther Gerlach (1 August 1889 – 10 August 1979) was a German physicist who co-discovered, through laboratory experiment, spin quantization in a magnetic field, the Stern–Gerlach effect. The experiment was conceived by Otto Stern in 1921 and successfully conducted first by Gerlach in early 1922.
Pierre Reverdy (French: [ʁəvɛʁdi]; 13 September 1889 – 17 June 1960) was a French poet whose works were inspired by and subsequently proceeded to influence the provocative art movements of the day, Surrealism, Dadaism and Cubism. The loneliness and spiritual apprehension that ran through his poetry appealed to the Surrealist credo. He, though, remained independent of the prevailing "-isms", searching for something beyond their definitions. His writing matured into a mystical mission seeking, as he wrote: "the sublime simplicity of reality."
Michael Raucheisen (10 February 1889, Rain, Swabia - 27 May 1984, Beatenberg) was a German pianist and song accompanist.
Frans Masereel (31 July 1889 – 3 January 1972) was a Belgian painter and graphic artist who worked mainly in France. He is known especially for his woodcuts which focused on political and social issues, such as war and capitalism. He completed over 40 wordless novels in his career, and among these, his greatest is generally said to be Passionate Journey.
Masereel's woodcuts influenced Lynd Ward and later graphic artists such as Clifford Harper, Eric Drooker, and Otto Nückel.
Arnoldo Mondadori (2 November 1889 – 8 June 1971) was a noted Italian publisher.
Jacob Levy Moreno (born Iacob Levy; May 18, 1889 – May 14, 1974) was a Romanian-American psychiatrist, psychosociologist, and educator, the founder of psychodrama, and the foremost pioneer of group psychotherapy. During his lifetime, he was recognized as one of the leading social scientists.
Alexander Fleck, 1st Baron Fleck (11 November 1889 – 6 August 1968) was a British industrial chemist.
Willi Baumeister (22 January 1889 – 31 August 1955) was a German painter, scenic designer, art professor, and typographer. His work was part of the art competitions at the 1928 Summer Olympics and the 1932 Summer Olympics.
Étienne Marie Felix Drioton (21 November 1889 – 17 January 1961) was a French Egyptologist, archaeologist, and Catholic canon. He was born in Nancy and died in Montgeron.
Paul Bern (born Paul Levy; December 3, 1889 – September 5, 1932) was a German-born American film director, screenwriter, and producer for Metro-Goldwyn-Mayer, where he became the assistant to Irving Thalberg. He helped launch the career of Jean Harlow, whom he married in July 1932; two months later, he was found dead of a gunshot wound, leaving what appeared to be a suicide note. Various alternative theories of his death have been proposed. MGM writer and film producer Samuel Marx believed that he was killed by his ex-common-law wife Dorothy Millette, who jumped to her death from a ferry days afterward.