Many who value the separation of religion and government have sought an appropriate response to the federally-supported National Day of Prayer , an annual abuse of the constitution. Nontheistic Americans (including freethinkers, humanists, atheists, agnostics, and deists), along with many traditionally religious allies, view such government-sanctioned sectarianism as unduly exclusionary.
A consortium of leaders from within the community of reason endorsed the idea of a National Day of Reason. This observance is held in parallel with the National Day of Prayer, on the first Thursday in May (3 May 2007). The goal of this effort 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.