The kirpan is a curved, single-edged blade that Khalsa Sikhs are required to wear as part of their religious uniform, as prescribed by the Sikh Code of Conduct. Traditionally, the kirpan was a full-sized talwar sword around 76 cm in length; however, British colonial policies and laws introduced in the 19th century reduced the length of the blade, and in the modern day, the kirpan is typically manifested as a dagger or knife. According to the Sikh Rehat Maryada, "The length of the sword to be worn is not prescribed". It is part of a religious commandment given by Guru Gobind Singh in 1699, founding the Khalsa order and introducing the five articles of faith which must be worn at all times, the kirpan being one of five Ks.