REMEMBERING GURU ARJAN, WHO SOWED THE SEED OF MARTYRDOM IN THE SIKH RELIGION. On June 16 annually, members of the Sikh religion remember the martyrdom of Guru Arjan. Guru Arjan Dev Ji who is the fifth Guru and first martyr of the Sikhs died through torture after pursuing his task of preaching about God, solidifying the members and expanding the Sikh faith during its early years. The death of Guru Arjan also resulted to permanent changes in the faith’s tradition which is still practiced today.

Source: The Sikh Holiday Commemorating the Martyrdom of Guru Arjan - World Religion News