1699 On the occasion of Vaisakhi, Guru Gobind Singh established the Khalsa Panth, a landmark event in Sikh tradition and identity. 1919 In Amritsar, the Jallianwala Bagh Massacre occurred when British forces under Reginald Dyer fired on an unarmed gathering, marking a dark chapter in colonial history. 1970 The Apollo 13 mission suffered a critical … Continue reading This Day in History