Mathematics
- July 11 – Keuffel and Esser manufacture the last slide rule in the United States.
- Imre Lakatos' Proofs and Refutations: the Logic of Mathematical Discovery is published posthumously.
- The four color theorem is proved by Kenneth Appel and Wolfgang Haken, the first major theorem to be proved using a computer.
Read more about this topic: 1976 In Science
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“I must study politics and war that my sons may have liberty to study mathematics and philosophy.”
—John Adams (1735–1826)