May 5th is National Day of Reason

The National Day of Reason is a secular celebration for humanists, atheists, and other secularists and freethinkers in response to the National Day of Prayer, a legal holiday in the United States. The day is celebrated on the first Thursday in May of every year, to coincide with the National Day of Prayer, which many atheist and secular groups view to be unconstitutional. The purpose of the National Day of Reason is to "celebrate reason—a concept all Americans can support—and to raise public awareness about the persistent threat to religious liberty posed by government intrusion into the private sphere of worship." The National Day of Reason is also meant to help build community among the non-religious in the United States.