October 11

Huldrych Zwingli, leader of the Reformation in Zurich, was killed at the Battle of Kappel while serving as chaplain to the city's forces.

The Vietnamese Zen teacher and poet Thich Nhat Hanh, founder of the Plum Village tradition, was born on 11 October 1926.

Pope John XXIII opened the Second Vatican Council in St. Peter's Basilica with the address Gaudet Mater Ecclesia.

Sri Chinmoy, the Bengali-born teacher of meditation who led inner-peace gatherings from his center in New York, died on this day in 2007.