Participants carry a giant Scottish flag during the annual Tartan Day Parade in New York, the United States, on April 6, 2019. The parade, which consists of drummers, pipers and dancers, celebrated Scottish and Scottish American heritage. In 1998 the U.S. Senate declared April 6 to be National Tartan Day to recognize the contributions made by Scottish Americans to the United States. (Xinhua/Michael Nagle)