On this day, 381 years ago, July 2, 1644 (May 28, 1644 in the lunar calendar), the Battle of Marston Wilderness broke out. On July 2, 1644, the Battle of Marston Moors broke out. Under the fighting of the left-wing cavalry led by Cromwell, the British Parliament Army defeated Charles I's King's Army (commanded by Prince Rupert) in one fell swoop. In this battle, the King's Army invested 15,000 people (7000 cavalry), killed more than 3000 people, and captured 1500 people. The Battle of Marston Moor was a turning point in the British Civil War, reversing successive defeats for the Parliament Army. Cromwell's troops were known nationwide as the "Iron Cavalry" during this battle. When the republic was at its peak, it was a pity that it could not maintain this strength for long