Sikhi,(Gurmukhi: ਸਿੱਖੀ ), amongst the youngest of the major world religions, originated and primarily developed in the 15th-17th century sub-continental India (South Asia). The word "Sikhi" derives from the word "Sikh", which itself is based on the Sanskrit root "śiṣya" (शिष्यः), meaning a "disciple" or "learner". Guru Nanak Dev Ji was the founder of Sikhi. He was born in 1469 in the village of Nankana Sahib, near Lahore in present-day Pakistan. The faith system is based on the teachings of Guru Nanak Dev Ji and ten successive Sikh Gurus (divine messengers or enlighteners), with the last one being the revealed sacred scripture, Guru Granth Sahib. This system of religious philosophy and expression has been traditionally known as Gurmat (literally the counsel of the Gurus) or the Sikh Dharma. With around 30 million followers worldwide, Sikhism is the fifth largest organized religion in the world.