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
The Five Ks keeps all five Ks are known as "Khalsa" ("pure") or "Amritdhari Sikh" ("Amrit Sanskar participant"), while a Sikh who has not taken Amrit but follows the teachings of the Sri Guru Granth Sahib is called a "Sahajdhari Sikh". The Kesh, or uncut, long hair, is considered by Sikhs as an indispensable part of the human body. Long known as a sign of spiritual devotion, it also emulates the appearance of Guru Gobind Singh and is one of the primary signs by which a Sikh can be clearly and quickly identified. A Sikh never cuts or trims any hair as a