THE UNIVERSAL RECORD
Sourced reporting. No opinions.
On July 21, 1925, teacher John T. Scopes was found guilty of violating Tennessee’s law against teaching human evolution, concluding a landmark trial that shaped debates over science, education, religion, and academic freedom for generations.
By Brad Socha | July 21, 2026 | 4:54 AM EST
The Scopes “Monkey Trial” remains one of the most influential courtroom battles in American history. Although it centered on a single high school teacher in a small Tennessee town, the trial became a global symbol of the tension between scientific inquiry and religious belief. Nearly a century later, the case continues to influence discussions about education, academic freedom, constitutional law, and how science is taught in classrooms.
The events leading to the trial began earlier in 1925, when the Tennessee General Assembly passed the Butler Act. Signed into law by Governor Austin Peay on March 21, the legislation prohibited teachers in publicly funded schools from presenting any theory that denied the Biblical account of humanity’s creation and instead taught that humans descended from lower forms of life.
At the time, Charles Darwin’s theory of evolution had become widely accepted within much of the scientific community, but it remained controversial in parts of the United States where religious fundamentalism was gaining political influence.
Seeking to challenge the constitutionality of the Butler Act, the American Civil Liberties Union (ACLU) offered to defend any Tennessee teacher willing to face prosecution.
Business leaders in the town of Dayton, Tennessee, recognized that such a trial could attract national attention. Local teacher John T. Scopes, a 24-year-old football coach and substitute science instructor, agreed to serve as the defendant after acknowledging that he had discussed evolutionary theory using a state-approved biology textbook.
The trial officially opened on July 10, 1925, in the Rhea County Courthouse. What might otherwise have been a routine legal proceeding quickly became an international media event.
More than 100 newspaper reporters traveled to Dayton, while radio broadcasts carried daily updates across the United States. It became one of the first American trials to receive extensive nationwide live media coverage, transforming the courtroom into a public stage for competing ideas about science, religion, education, and modern society.
The legal teams themselves drew extraordinary attention.
Representing the prosecution was William Jennings Bryan, a three-time Democratic presidential nominee, former U.S. Secretary of State, and one of the country’s most prominent advocates of Biblical literalism.
Defending Scopes was Clarence Darrow, one of America’s most famous trial lawyers, renowned for his courtroom skill and outspoken support for civil liberties.
Although the trial formally concerned whether Scopes had violated Tennessee law, public attention focused increasingly on the broader philosophical debate between evolutionary science and religious interpretation.
Judge John T. Raulston ruled that scientific testimony concerning evolution itself would have limited relevance because the central legal question was whether Scopes had taught material prohibited by state law.
Even so, the proceedings produced one of the most memorable courtroom exchanges in American legal history.
On July 20, Darrow unexpectedly called Bryan to the witness stand as an expert on the Bible. The examination took place outdoors because the crowded courtroom had become unbearably hot during the Tennessee summer.
During several hours of questioning, Darrow challenged Bryan’s literal interpretation of Biblical passages while Bryan defended his religious views before an audience of reporters and spectators.
Although the testimony carried little legal weight, it became the defining public moment of the trial and drew enormous international attention.
The following day, July 21, 1925, the jury deliberated for only a few minutes before finding Scopes guilty of violating the Butler Act.
Judge Raulston imposed the minimum penalty allowed by law, a $100 fine, equivalent to roughly $1,800 in today’s purchasing power.
The legal battle, however, did not end with the verdict.
Scopes appealed his conviction to the Tennessee Supreme Court. In 1927, the court upheld the constitutionality of the Butler Act but overturned Scopes’ conviction on a technical procedural issue because the trial judge, rather than the jury, had imposed the fine.
The Butler Act itself remained in force until 1967, when Tennessee repealed the law. A year later, the U.S. Supreme Court ruled in Epperson v. Arkansas (1968) that laws prohibiting the teaching of evolution in public schools violated the First Amendment’s Establishment Clause.
Although the Scopes Trial did not immediately settle the national debate over evolution, it profoundly influenced public attitudes toward science education.
The extensive media coverage exposed millions of Americans to discussions about evolutionary biology, constitutional rights, and the role of government in determining educational content. The trial also highlighted how scientific discoveries could become intertwined with politics, religion, and cultural identity.
In the decades that followed, debates over science education continued through disputes involving evolution, creationism, intelligent design, and more recently, curriculum standards in public schools.
Beyond education, the Scopes Trial became an enduring part of American legal and cultural history. It inspired books, documentaries, and the acclaimed 1955 play Inherit the Wind, which was later adapted into several films. While fictionalized, the work introduced new generations to the issues raised by the trial.
Historians today generally view the Scopes Trial as a pivotal moment in the relationship between science, law, education, and public opinion. Rather than ending the debate, the case demonstrated how scientific questions can become broader societal conversations involving constitutional rights, cultural values, and the responsibilities of public institutions.
Nearly a century after the verdict, the Scopes “Monkey Trial” continues to be studied in history, law, education, and political science courses around the world. Its legacy extends far beyond a single courtroom in Tennessee, serving as a reminder that debates over knowledge, evidence, and freedom of inquiry remain central to democratic societies.
Sources:
Library of Congress — https://www.loc.gov/item/today-in-history/july-21/
Encyclopaedia Britannica — https://www.britannica.com/event/Scopes-Trial
National Constitution Center — https://constitutioncenter.org/blog/the-scopes-trial-and-americas-debate-over-science-and-religion
Tennessee Encyclopedia — https://tennesseeencyclopedia.net/entries/scopes-trial/
History.com — https://www.history.com/this-day-in-history/scopes-monkey-trial-ends
American Civil Liberties Union — https://www.aclu.org/about/aclu-history-the-scopes-trial
About the Author
Brad Socha is the founder of The Universal Record, focused on sourced, factual global reporting. Coverage includes international news, geopolitics, technology, and major developments.