Japan. From 1986 to 1988, 676 cherry trees were planted using US$101,000 in private funds donated to the National Park Service to restore the trees to the number at the time of the original gift. In 1994, the Festival was expanded to two weeks to accommodate the many activities that happen during the trees' blooming. Two years later, the Potomac and Arakawa became sister rivers. Cuttings were taken from the documented 1912 trees in 1997 to be used in replacement plantings and thus preserve the genetic heritage of the grove. In 1999, fifty trees of the Usuzumi variety from Motosu, Gifu, were planted in West Potomac Park. According to legend, these trees were first planted by Emperor Keitai in the 6th century and were designated a National Treasure of Japan in 1922. From 2002 to 2006, 400 trees propagated from the surviving 1912 trees were planted to ensure the genetic heritage of the original donation is maintained. Organization and events The National Cherry Blossom Festival is coordinated by the National Cherry Blossom Festival, Inc., an umbrella organization consisting of representatives of business, civic, and governmental organizations. More than 700,000 people visit Washington each year to admire the blossoming cherry trees that herald the beginning of spring in the nation's capital. The three-week festival begins around the middle of March with a Family Day at the National Building Museum and an official opening ceremony in the Warner Theatre. The Pink Tie Party is also held, at which attendees are invited to don their finest pink attire to revel together and toast the spring season. An array of activities and cultural events takes place on the following days. The Blossom Kite Festival (formerly the Smithsonian Kite Festival) usually takes place during the festival's first or second weekend. Every day there is a sushi/sake celebration, classes about cherry blossoms, and a bike tour of the Tidal Basin. Other events include art exhibits (photography, sculpture, animation), cultural performances, rakugo, kimono fashion shows, dance, singing, martial arts, merchant-sponsored events, and a rugby union tournament. The next Saturday, a three-stage festival takes place on the Southwest Waterfront. When the festival ends, a fireworks show begins on the nearby Washington Channel. The next morning (Sunday), the Credit Union Cherry Blossom Ten Mile Run begins on the grounds of the Washington Monument. Later that Sunday, dignitaries gather at the Tidal Basin to participate in a ceremonial lighting of