The Harmandir Sahib (Punjabi: ਹਰਿਮੰਦਰ ਸਾਹਿਬ), also Darbar Sahib (Punjabi: ਦਰਬਾਰ ਸਾਹਿਬ, Punjabi pronunciation: [dəɾbɑɾ sɑhɪb])^[1] [3] and informally referred to as the"Golden Temple",^[1] is the holiest Sikh gurdwara located in the city of Amritsar,Punjab, India. The city was founded in 1574 by the fourth Sikh guru, Guru Ram Das.^[4]The Harmandir Sahib was designed by the fifth guru, Guru Arjan, who had the cornerstone laid by the Muslim Sufi saint Sai Hazrat Mian Mir on 28 December 1588. Guru Arjan completed the Adi Granth, the holy scripture of Sikhism, in 1604 and installed it in the gurdwara.^[1]

There are four doors to get into the Harmandir Sahib, which symbolise the openness of the Sikhs towards all people and religions.^[5] The present-day gurdwara was rebuilt in 1764 by Jassa Singh Ahluwalia with the help of other Sikh Misls. In the early nineteenth century, Maharaja Ranjit Singh secured the Punjab region from outside attack and covered the upper floors of the gurdwara with gold, which gives it its distinctive appearance and its English name.