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
Nishan Sahib Nishan Sahib The Nishan Sahib is a Sikh triangular flag made of cotton or silk cloth, with a tassel at its end. The word, "Nishan" means symbol, and the flag is hoisted on a tall flagpole, outside most Gurdwaras. The flagpole itself, covered with fabric, ends with a two-edged dagger ("khanda") on top. The emblem on the flag is also known as "Khanda", which depicts a double-edged sword called a khanda (☬) in the centre, a chakkar which is circular, and flanked by two single-edged swords, or kirpans. Traditional symbol of the Khalsa Panth (corps of initiated Sikhs), the Nishan