Sikhism achieved a series of military victories and created a Sikh Empire in 1799. The Sikh empire had its capital in Lahore, spread over almost comprising what is now northwestern Indian subcontinent. The Sikh Empire entered into a treaty with the colonial British powers, with each side recognizing Sutlej River as the line of control and agreeing not to invade the other side. Ranjit Singh's most lasting legacy was the restoration and expansion of the Harmandir Sahib, most revered Gurudwara of the Sikhs, with marble and gold, from which the popular name of the "Golden Temple" is derived. After the death
Golden Temple temple or house. The Sikh tradition has several Gurdwaras named "Harmandir Sahib" such as those in Kiratpur and Patna. Of these, the one in Amritsar is most revered. According to the Sikh historical records, the land that became Amritsar and houses the Harimandar Sahib was chosen by Guru Amar Das – the third Guru of the Sikh tradition. It was then called Guru Da Chakk, after he had asked his disciple Ram Das to find land to start a new town with a man made pool as its central point. After Ram Das succeeded Guru Amar Das in 1574, and