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 living guru, the highest religious and spiritual guide for Sikhs and inspire all of humanity; it plays a central role in guiding the Sikh's way of life. Its place in Sikh devotional life is based on on the "Gurbani" (the word of Guru/God) which was received by the Sikh gurus in their divine consciousness from God and revealed to mankind. The Guru Granth Sahib answers all questions regarding religion and that morality can be discovered within it. The word is the guru and the guru is the word. Thus, in Sikh theology, the revealed divine word was written by past