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
Guru Granth Sahib this was later replaced by the modern Chaur sahib. The Guru Granth Sahib is taken care of by a Granthi, who is responsible for reciting from the sacred hymns and leading Sikh prayers. The Granthi also acts as caretaker for the Guru Granth Sahib, keeping the Guru Granth Sahib covered in clean cloths, known as "rumala", to protect from heat, dust, pollution, etc. The Guru Granth Sahib rests on a "manji sahib" under a "rumala" until brought out again. The Gurudwara Ramsar, the official religious body of Sikhs, is responsible for making physical copies of the Guru Granth Sahib. Until