Scopes Trial: John T. Scopes is indicted for teaching human evolution in Tennessee.

The State of Tennessee v. John Thomas Scopes, commonly known as the Scopes trial or Scopes Monkey Trial, was an American legal case from July 10 to July 21, 1925, in which a high school teacher, John T. Scopes, was accused of violating the Butler Act, a Tennessee state law which outlawed the teaching of human evolution in public schools. The trial was deliberately staged in order to attract publicity to the small town of Dayton, Tennessee, where it was held. Scopes was unsure whether he had ever actually taught evolution, but he incriminated himself deliberately so the case could have a defendant. Scopes was represented by the American Civil Liberties Union, which had offered to defend anyone accused of violating the Butler Act in an effort to challenge the constitutionality of the law.

John Thomas Scopes was a teacher in Dayton, Tennessee, who was charged on May 5, 1925, with violating Tennessee's Butler Act, which prohibited the teaching of human evolution in Tennessee schools. He was tried in a case known as the Scopes trial, and was found guilty and fined $100.

Homo sapiens is a distinct species of the hominid family of primates, which also includes all the great apes. Over their evolutionary history, humans gradually developed traits such as bipedalism, dexterity, and complex language, as well as interbreeding with other hominins, indicating that human evolution was not linear but weblike. The study of the origins of humans involves several scientific disciplines, including physical and evolutionary anthropology, paleontology, and genetics; the field is also known by the terms anthropogeny, anthropogenesis, and anthropogony—with the latter two sometimes used to refer to the related subject of hominization.

May 25 is the 145th day of the year in the Gregorian calendar; 220 days remain until the end of the year.