Guru Nanak began teaching a new faith different from Hinduism and Islam in 1500 CE, starting the Sikh religion. Over subsequent centuries, the nine human Gurus that followed expanded on Guru Nanak's teachings and helped establish the Sikh community, with each Guru nominating their successor. Key figures included Guru Angad who established schools and the Gurmukhi script, Guru Amar Das who introduced the manji system of missionary centers, and Guru Arjan Dev who compiled hymns and built the Golden Temple. Guru Gobind Singh was the last human Guru who established the Khalsa order in 1699 and nominated the Guru Granth Sahib as the eternal spiritual guide of