Tangshan - Prefecture-level city in Hebei, People's Republic of China

"Tangshan is a coastal, industrial prefecture-level city in the northeast of Hebei province. The city's industrialization began in 1870, when Kailuan Group established coal mines in the region. It's the birthplace of China's first standard-gauge railway, the first railway plant, the first steam locomotive, and the first cement factory. It was hailed as China's "cradle of industrialization". Even today, Tangshan is a hub of steel, energy, chemical, and ceramics production. Ping opera, which originated from the city's Luanzhou county, is one of the five most popular Chinese operas. - Wikipedia"