 Thus, after the capture of the Hormuz Island, Abbas I required local Christians to convert to Islam, Abbas II granted his ministers authority to force Jews to become Muslims, and Sultan Husayn decreed forcible conversion of Zoroastrians.In 1839, during the Qajar era the Jewish community in the city of Mashhad was attacked by a mob and subsequently forced to convert to Islam.In an invasion of the Kashmir valley (1015), Mahmud of Ghazni plundered the valley, took many prisoners and carried out conversions to Islam.