 By the end of 1911, Montessori education had been officially adopted in public schools in Italy and Switzerland, and was planned for the UK.By 1912, Montessori schools had opened in Paris and many other Western European cities, and were planned for Argentina, Australia, China, India, Japan, Korea, Mexico, Switzerland, Syria, the US and New Zealand.Public programs in London, Johannesburg, Rome, and Stockholm had adopted the method in their school systems.