The National Day of Prayer has a long-standing tradition in the United States, dating back to 1775 when the Continental Congress called for a day of prayer. In 1952, President Harry S Truman signed a bill into law that established an annual National Day of Prayer. Since then, every U.S. President has signed a proclamation encouraging Americans to observe this day. 

It serves as a reminder of the rich religious diversity that exists in the United States and the important role that faith plays in shaping our nation's history and future. It also highlights the need for people to come together and seek spiritual guidance during times of crisis, whether it be personal or national. Does the National Day of Prayer violate the Establishment Clause? What does the Supreme Court say about legislative prayer? Download and read our free legal guide to find out.