On May 25, 1810, citizens of Buenos Aires expelled Viceroy Baltasar Hidalgo de Cisneros starting the Argentine War of Independence.
On May 25, 1925, John T. Scopes was indicted for violating Tennessee’s Butler Act, which made it unlawful to teach evolution in any state-funded school. The Scopes Trial — formally known as The State of Tennessee v. John Thomas Scopes and informally known as the Scopes Monkey Trial — drew intense national publicity, as reporters flocked to Dayton, Tennessee, to cover the big-name lawyers representing each side. William Jennings Bryan, three-time presidential candidate for the Democrats, argued for the prosecution, while Clarence Darrow, the famed defense attorney, spoke for Scopes. Scopes was found guilty, but the verdict was overturned on a technicality and he went free.