Task: Question Understanding
Input (English): Passage: The New Englanders, led by Sir William Phips, retaliated by attacking Port Royal, the capital of Acadia. The Battle of Port Royal began on May 9, 1690.:82 Phips arrived with 736 New England men in seven English ships. Governor de Meneval fought for two days and then capitulated. The garrison was imprisoned in the church, and Governor de Meneval was confined to his house. The New Englanders levelled what was begun of the new fort.:38 The residents of Port Royal were imprisoned in the church and administered an oath of allegiance to the King.:39 Phips left, but warships from New York City arrived in June which resulted in more destruction.:82 The seamen burned and looted the settlement, including the parish church.:40 The New Englanders left again, and Villebon, the Governor of Acadia, moved the capital to safer territory inland at Fort Nashwaak . Fort Nashwaak remained the capital until after the war, when Port Royal was restored as the capital in 1699.:45
Question: What day did the Battle of Port Royal begin?
Output (English): date