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%
四六判 is read as しろくばん (shirokuban) and means shirokuban (paper size of 127x188mm).
しろくばん
shirokuban
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%
しいちろくじけん
April 16 incident (arrests of communists and members of other anti-government groups; 1929)
ろくこうよんみん
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)