June 11, 1963 - Thich Quang Duc, a Buddhist monk from Vietnam, burnt himself to death at a busy intersection in downtown Saigon to bring attention to the repressive policies of the Catholic Diem regime that controlled the South Vietnamese government at the time. Buddhist monks asked the regime to lift its ban on flying the traditional Buddhist flag, to grant Buddhism the same rights as Catholicism, to stop detaining Buddhists and to give Buddhist monks and nuns the right to practice and spread their religion.
As he burned, seated in the Buddhist meditative lotus position, he never moved a muscle, never uttered a sound.
After his death, his body was re-cremated, but his heart did not burn and remained intact. It was considered to be holy and placed in a glass chalice at Xá Lợi pagoda. The intact heart relic is regarded as a symbol of compassion.