1950's

1950s English Noun p 1 en 1950s. en 1972 Theodore Shabad The North China Plain China's Changing Map https://archive.org/details/chinaschangingma0000unse/ New York w:Frederick A. Praeger 71-178868 482667885 119 https://archive.org/details/chinaschangingma0000unse/page/119/ Two other major coal-mining centers, each producing coking-grade bituminous coal, have been developed in Honan since the late 1950's. Hopi, in northernmost Honan, arose in 1957 on the site of a small, primitive operation in a deposit of lean coal, low in volatile content. A city was established in that year, and the mining complex was linked by a 12-mile rail spur with Tangyin, on the main Peking-Hankow line.