Guru Arjan was the fifth Sikh Guru in a lineage of ten Sikh Gurus, and was one of the two Sikh Gurus who perished for not renouncing their faith – the other being Guru Tegh Bahadur Sahib, the ninth Sikh Guru. He was known for compiling the first rendition of the holy book of Sikhism, called Adi Granth. Guru Arjan was tortured by the Mughal Emperor Jahangir for his refusal to abandon the teachings of Sikhism, until his execution in 1606. It is unclear to this date whether he perished during torture or was executed by drowning.