AARP, formerly the American Association of Retired Persons, is a United States-based non-governmental organization and interest group, founded by Dr. Ethel Percy Andrus in 1958 and based in Washington, D.C. According to its mission statement, it is "a nonprofit, nonpartisan membership organization for people age 50 and over ... dedicated to enhancing quality of life for all as we age," which "provides a wide range of unique benefits, special products, and services for our members."
The Citi Open is a joint professional tennis tournament played on outdoor hard courts, and held annually in late July at the William H.G. FitzGerald Tennis Center in Rock Creek Park, Washington, D.C., United States. The Citi Open is part of the ATP World Tour 500 series on the Association of Tennis Professionals World Tour, and of the WTA International tournaments on the Women's Tennis Association Tour.