March 6, 1881 – The Leicester Secular Hall opens in Leicester, England, with speeches by numerous eminent freethinkers, including Annie Besant, Charles Bradlaugh, and George J. Holyoake. The Hall has been home to the Leicester Secular Society ever since. Founded in 1851, the Leicester Secular Society is the world’s oldest existing freethought organization.
March 6, 1927Â – British philosopher Bertrand Russell delivers a speech titledÂ “Why I Am Not a Christian” at Battersea Town Hall forÂ the South London Branch of the National Secular Society. Russell tackled several arguments for the existence of God, and questioned the moral authority–and even the historicity–of Jesus. The speech was published as a pamphlet a year later, and was the title essay in a collection of Russell’s work in 1957.