History of Japan men instead joined forces with Emperor Go-Daigo and overthrew the Kamakura shogunate. Japan nevertheless entered a period of prosperity and population growth starting around 1250. In rural areas, the greater use of iron tools and fertilizer, improved irrigation techniques, and double-cropping increased productivity and rural villages grew. Fewer famines and epidemics allowed cities to grow and commerce to boom. Buddhism, which had been largely a religion of the elites, was brought to the masses by prominent monks, such as Hōnen (1133–1212), who established Pure Land Buddhism in Japan, and Nichiren (1222–82), who founded Nichiren Buddhism. Zen Buddhism spread widely among
Pure Land Buddhism and form an important component of the Mahāyāna Buddhist traditions of China, Japan, Korea, Tibet and Vietnam. The term "Pure Land Buddhism" is used to describe both the Pure Land soteriology of Mahayana Buddhism, which may be better understood as "Pure Land traditions" or "Pure Land teachings," and the separate Pure Land sects that developed in Japan from the work of Hōnen. Pure Land Buddhism is built on the belief that we will never have a world which is not corrupt, so we must strive for re-birth in another plane, referred to as the "Pure Land". The Pure Land teachings