The holiday was signed into law by President Truman, and every president since has signed a proclamation that encourages Americans to pray on and celebrate this day. The national holiday has always been the first Thursday of May every year since it was founded in 1952. It stands as a day that continues the decision-making of the country’s founding fathers, which used the morals from biblical lessons in difficult situations. Basically, using God’s guidance to make important decisions in the country and for yourself. Just like Thanksgiving and Christmas, the National Day of Prayer has become recognized by Americans nationwide, and it is even recognized and celebrated in all Hallmark calendars.