races. Starting in 1935, troupes of schoolgirls from the city's five boroughs competed at an annual concert attended by thousands of spectators. This practice continued even through World War II. Another popular festival was a Works Progress Administration sponsored event in 1936, attended by 25,000 people. During World War I, Sheep Meadow was the site of patriotic wartime celebrations. In 1916, the 107th Infantry, the 7th Regiment Reserves, marched daily from their Park Avenue Armory to Sheep Meadow for maneuvers and drill, before being deployed that August. They are memorialized by the 107th Infantry Memorial, east of the Meadow at 5th Avenue and 67th Street. In 1917, 20,000 liberty war bond marchers participated in a "Liberty Day Parade" that ended in Sheep Meadow. The following year, there was a proposal to install trenches in Sheep Meadow as part of a wartime exhibition, the reason being that Sheep Meadow was in worse shape than North Meadow, the other large meadow in the park at the time. However, this was controversial because it was seen as detrimental to the naturalistic character of the park. The meadow was also used for patriotic gatherings during World War II. On October 27, 1945, Harry S. Truman spoke to 50,000 people at Sheep Meadow on Navy Day. 1960s and 1970s: be-ins Starting in the 1960s, Sheep Meadow was used for events of unprecedented scale. Concerts, Vietnam War protests, and hippie "love-ins" and "be-ins" were attended by hundreds of thousands of people. The demonstrations included a "be-in style" peace demonstration attended by 10,000 people in March 1967, and an anti-Vietnam War rally attended by 400,000 people in April of that year. In Easter 1968, mayor John Lindsay, an opponent of the Vietnam War, met with protesters and marchers in an event attended by 90,000 people who assembled at Sheep Meadow. On June 28, 1970, there was a massive gay march and "be-in" that traveled from Stonewall Inn to Sheep Meadow to commemorate the first anniversary of the Stonewall riots. Another large Vietnam War protest march, which occurred in 1971 and included 20,000 protesters, marched up Sixth Avenue and ended at Sheep Meadow. These be-ins stopped by the 1970s as attitudes toward large protests in Central Park changed. Other large gatherings included an event in 1969 when large crowds gathered to watch Apollo 11, the first crewed mission to land on the Moon. That same year, a group