1st World Scout Jamboree 1st World Scout Jamboree The 1st World Scout Jamboree was held from 30 July 1920 to 8 August 1920 and was hosted by the United Kingdom at Kensington Olympia in London. 8,000 Scouts from 34 nations attended the event, which was hosted in a glass-roofed building covering an area of . It was at this event that Baden-Powell, the founder of Scouting, was acclaimed the Chief Scout of the World. The organizing secretary was A.G. Wade. The Olympia arena was filled with a foot-(30 cm)-deep layer of earth, which was turfed over, enabling the Scouts to pitch tents within the
American Boy Scouts left the ABS in 1910 and formed the New England Boy Scouts. On March 12, 1911, the Rhode Island group voted to break away from the American Boy Scouts and formed the Rhode Island Boy Scouts. The ABS joined the Order of World Scouts in 1911. In August 1911, General Edwin A. McAlpin was elected national president and Chief Scout. In March 1912, an ABS Scout in uniform shot and killed a boy with a rifle after a Scout function. Remington Arms designed the 4S Boy Scout Rifle and advertised it as the "Official Rifle of the American Boy Scouts"