The Gurdwara sahib is built around a man-made pool (Sarovar) that was completed by Guru Ram Das in 1577. Guru Arjan, the fifth Guru of Sikhism, requested Sai Mian Mir - a Muslim Pir of Lahore, to lay its foundation stone in 1589. In 1604, Guru Arjan placed a copy of the Adi Granth in Harmandir Sahib, calling the site Ath Sath Tirath (lit. "shrine of 68 pilgrimages"). The Gurdwara was repeatedly rebuilt by the Sikhs after it became a target of persecution and was destroyed several times by the Muslim armies from Afghanistan and the Mughal Empire. The army led by Ahmad Shah Abdali, for example, demolished it in 1757 and again in 1762, then filled the pool with garbage. The construction work of the present day Harmandir Sahib took place in 1764 under the leadership of Sultan-e-Quam Sardar Jassa Singh 1718-1783 and other leading Sikh Misl Sardars and Jagirdars under Kaar Seva, large Sikh congregations assembled at Amritsar to help rebuild Darbar Sahib. Harmandir Sahib was finally completed in 1776. Maharaja Ranjit Singh visited Darbar Sahib in 1802 after seizing Amritsar from Sardar Gurdit Singh Dhillon and his mother Mai Sukkha of Bhangi Sikh Misl. Maharaja laid it in marble and copper between 1820-1831, and overlaid the sanctum with gold foil by 1830. This has led to the name Golden Temple.