The Scopes Trial is one of the central public-history nodes in the creation/evolution controversy. It matters not because it settled the science, but because it shaped how anti-evolution conflict, legal theater, press coverage, and cultural memory became attached to evolution education in the United States.
Scopes sits between broad chronology and denser archival material. It is readable as an event in its own right, but its continuing importance lies in how later generations turned it into a shorthand for conflict between science, religion, law, and public performance.
That makes it a useful point of entry for readers interested not only in what happened in 1925, but in how the event was retold, simplified, dramatized, and folded into later controversy.