Guru Nanak became guru because, he believed in one god and that Muslims and Hindus should not be separated and should be united instead. He went missing for 3 days at the age of 30 and was found that...
Guru Nanak became guru because at the time, he felt there were many things wrong, like the Caste System for example, and he thought that he should make a religion or belief of his own that he could...