What was the effect of the Marston Moor on the English civil war?

The Battle of Marston Moor, fought on July 2, 1644, was a significant turning point in the English Civil War. The decisive victory for the Parliamentarian forces, led by the Earl of Manchester and Oliver Cromwell, effectively shattered the Royalist control in the north of England. This defeat not only boosted Parliament's morale but also allowed them to consolidate power, leading to a shift in momentum that ultimately contributed to the eventual defeat of King Charles I. The battle demonstrated the effectiveness of the New Model Army and highlighted the increasing importance of cavalry in warfare during this period.