Americans observed the National Day of Prayer by gathering at thousands of locations across the country in what was expected to be the largest such observance in its six-decade history. The number of events for the May 3 observance was more than 35 percent ahead of last year at the same time, the National Day of Prayer (NDP) Task Force reported six days before the observance. In 2011, prayer events were held at about 40,000 locations.