Abner Doubleday is often credited with inventing baseball in 1839, but this is considered a myth by historians. While Doubleday made important contributions during the Civil War, evidence shows he was not involved in baseball's creation. The earliest known reference to baseball-like activities comes from a 1744 British poem. Doubleday helped convince Union forces to evacuate the dangerous Fort Moultrie for the safer Fort Sumter in 1860, a pivotal moment in the Civil War. Despite having no real connection to baseball, Doubleday's reputation as a war hero led to him becoming credited as the sport's founder.