The battle at Naseby marked a pivotal turning point in the Civil War.

Evidence

On June 14, 1645, the last trial of strength was made. … The action followed what had almost become the usual course, Rupert shattered the Parliamentary left, and though, as at Edgehill, his troopers were attracted by the Parliamentary baggage column, he returned to strike heavily at the central Roundhead infantry. … The royal foot, beset on all sides by overwhelming numbers, fought with devotion. — Winston Churchill, A History of the English-Speaking…, 1082

Categorization

• corroborated: 2 independent passages support this claim — Winston Churchill, A History of the English-Speaking…, 1082