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
Buddhism in Japan practice, 75% practice some form of Buddhism (compared with 90% practicing Shinto, thus most Japanese practice both religions to some extent (Shinbutsu-shūgō)). About 60% of the Japanese have a Butsudan (Buddhist shrine) in their homes. The arrival of Buddhism in China is ultimately a consequence of the first contacts between China and Central Asia, where Buddhism had spread from the Indian subcontinent. These contacts occurred with the opening of the Silk Road in the 2nd century BCE, following the travels of Zhang Qian between 138 and 126 BCE. These contacts culminated with the official introduction of Buddhism in China in