Robert Baden-Powell, 1st Baron Baden-Powell phenomenon. A rally of Scouts was held at Crystal Palace in London in 1909, at which Baden-Powell met some of the first Girl Scouts. The Girl Guides were subsequently formed in 1910 under the auspices of Baden-Powell's sister, Agnes Baden-Powell. Baden-Powell's friend Juliette Gordon Low was encouraged by him to found the Girl Scouts of the USA. In 1920, the 1st World Scout Jamboree took place in Olympia in West Kensington, and Baden-Powell was acclaimed Chief Scout of the World. Baden-Powell was created a Baronet in 1921 and Baron Baden-Powell, of Gilwell, in the County of Essex, on 17 September
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"