"The Muslim conquest resulted in the destruction of all Buddhist, Jain, and Hindu temples and monuments in and around Mathura. Buddhism, already in decline, -never revived, and for the next four hundred years the Jains and Hindus were unable to erect any temples that were not sooner or later demolished. Many of the sites that had been places of religious importance were abandoned and gradually sank beneath the earth. But some of them were not forgotten, owing to the persistence of oral tradition, the refashioning of a temple into a mosque, or the presence of humble shrines, some of which housed sculptural fragments of earlier buildings. Several of them have survived as places of significance in the modern pilgrimage circuit."