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
Sikh holocaust of 1746 This offence continued until news of it reached an isolated band of Sikhs in Rajasthan. Of them, Mehtab Singh and Sukkha Singh set off to cross the distance to Amritsar. Finding the city strongly guarded, the two disguised themselves as revenue officials. In this guise, they entered the Harmandir Sahib, cut off Ranghar's head and escaped before the Mughal soldiers could realise what had happened. This took place on 11 August 1740. Sukkha Singh was wounded in the defensive action involving the first Sikh massacre and later died in battle with the invading Afghan army of Ahmed Shah Durrani in