Final answer:
The marriage of Pocahontas and John Rolfe restored peace in Virginia after the First Anglo-Powhatan War.
Step-by-step explanation:
The event that restored peace in Virginia after the First Anglo-Powhatan War was the marriage of Pocahontas and John Rolfe. Their union helped quell the war in 1614.
Pocahontas converted to Christianity and sailed to England with her husband, where she was introduced to King James I. The marriage and her choice to remain with the English played a significant role in establishing peace between the English and the Powhatan.