四公六民
しこうろくみん
land-tax system during the Edo period under which the government took 40% of the year's crop and the farmers kept 60%
六公四民 is read as ろくこうよんみん (rokukouyommin) and means land-tax rate during the Edo period (the government took 60 percent of the year's rice crop and the farmers kept 40 percent).
ろくこうよんみん
rokukouyommin
しこうろくみん
land-tax system during the Edo period under which the government took 40% of the year's crop and the farmers kept 60%
ろくさんさんよんせい
six-three-three-four system of education (six years of elementary school, three years each of junior and senior high school and four years of university)
しいちろくじけん
April 16 incident (arrests of communists and members of other anti-government groups; 1929)
よんだいこうがいびょう
the four major pollution-caused illnesses (Minamata disease, Niigata Minamata disease, Yokkaichi asthma, Itai-itai disease)