Births on February 4

Lotfi Zadeh

Born on February 4, 1921

Lotfi Zadeh, Iranian-American mathematician and computer scientist and founder of fuzzy logic (d. 2017)

Lotfi Aliasker Zadeh (; Azerbaijani: Lütfi Rəhim oğlu Ələsgərzadə; Persian: لطفی علی‌عسکرزاده; 4 February 1921 – 6 September 2017) was a mathematician, computer scientist, electrical engineer, artificial intelligence researcher, and professor of computer science at the University of California, Berkeley.

Zadeh is best known for proposing fuzzy mathematics, consisting of several fuzzy-related concepts: fuzzy sets, fuzzy logic, fuzzy algorithms, fuzzy semantics, fuzzy languages, fuzzy control, fuzzy systems, fuzzy probabilities, fuzzy events, and fuzzy information.

Zadeh was a founding member of the Eurasian Academy.

References

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Events on 1921

15 Feb

Helsinki
Kingdom of Romania establishes its legation in Helsinki.
20 Mar

Versailles Treaty
The Upper Silesia plebiscite was a plebiscite mandated by the Versailles Treaty to determine a section of the border between Weimar Germany and Poland.
11 Jul

William Howard Taft
Former President of the United States William Howard Taft is sworn in as 10th Chief Justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.
29 Oct

Sacco and Vanzetti
United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
11 Nov

Arlington National Cemetery
The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.

Births on February 4

Lotfi Zadeh

Born on February 4, 1921

References

Choose Another Date

Events on 1921

Helsinki

Versailles Treaty

William Howard Taft

Sacco and Vanzetti

Arlington National Cemetery