Today is the National Day of Prayer
There have been several national days of prayer in the U.S. before the day was made official in 1952. The Continental Congress issued a day of prayer in 1775 to designate "a time for prayer in forming a new nation".
On April 17, 1952, President Harry S. Truman signed a bill proclaiming the National Day of Prayer into law. It was in 1972 that the National Prayer Committee was formed. It went on to create the National Day of Prayer Task Force, with the intended purpose of coordinating events for the National Day of Prayer. In 1988, President Ronald Reagan signed a bill into law decreeing that the National Day of Prayer should be held on the first Thursday of May.
The intention of the National Day of Prayer was always that it would be a day when members of all faiths could pray together in their own way. It would involve Christians, Jews, Muslims, Buddhists, Hindus, Aboriginals, Zoroastrians, Bahá'ís, Satanists, Pagans and all others, of any faith or of no organized religion, who had a religious faith and wished to participate