Peking Man (Sinanthropus pekinensis) was not a single individual, but a species of Homo erectus who were very similar to modern humans, having a large brain, and similar skull and bone sizes, but who had heavy brows and large, chinless jaws. Discovered in 1923–27 during excavations at Zhoukoudian (Chou K’ou-tien) near Beijing (written “Peking” before the adoption of the Pinyin romanization system), China, in 2009 this group of fossil specimens dated from roughly 750,000 years ago.