Birthday of Guru Hargobind Guru Hargobind (ruled 1606-1644) was the sixth Guru of the Sikhs. He is most known for bringing the necessity of a military mindset into the Sikh tradition in a time when his people were threatened and oppressed. He encouraged his people to take up arms in defense of their lifestyle and families, using the spirituality of Sikhism to motivate his armies to protect the weak.