Jallianwala Bagh massacre.

_{On April 13, 1919, the Jallianwala-Bagh-massacre occurred in Amritsar, India, during the Baisakhi festival. British Indian Army soldiers opened fire on a large crowd of unarmed civilians gathered in Jallianwala Bagh, resulting in hundreds of deaths and injuries. The incident, also known as the Amritsar Massacre, significantly impacted the Indian independence movement and is a crucial event in Indian history.}