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Scopes Monkey Trial Begins

The Scopes Monkey Trial, which challenged the legality of teaching evolution in public schools.

The Scopes Monkey Trial, which challenged the legality of teaching evolution in public schools.

What Happened?

On July 10, 1925, high school teacher John Scopes stood trial in Dayton, Tennessee, for violating a state law that banned teaching evolution in public schools. What followed was one of the most famous legal showdowns in U.S. history.

The case was a setup from the start. Scopes volunteered to challenge the new law at the urging of local leaders hoping to put Dayton on the map. The ACLU agreed to defend him. Soon, legendary attorney Clarence Darrow joined the defense, while William Jennings Bryan, former presidential candidate and Christian fundamentalist icon, joined the prosecution.

The trial became a national sensation. Preachers held revivals outside. Vendors sold toy monkeys. A chimpanzee in a plaid suit danced on the courthouse lawn. Inside, the judge banned expert testimony on evolution, and crowds sweltered as the debate over science, scripture, and civic values played out.

In a stunning twist, Darrow called Bryan to the stand and grilled him on the literal truth of the Bible, exposing contradictions and drawing laughter from the crowd. Bryan won the case but lost the argument.

Scopes was found guilty and fined $100, but the real legacy of the trial lived on. Though the Tennessee law stood for decades, the trial had cracked open a conversation that still echoes today: Who decides what we teach, and what happens when science challenges belief?

Why It Matters

The Scopes Trial staged a cultural reckoning between old and new America. At its core was a question we’re still asking: Can a democratic society make space for both faith and scientific inquiry? In Dayton, the courtroom became a mirror for a nation wrestling with modernity, morality, and the power of knowledge.

Stay curious!