The Penghu (/ˈpʌŋˈhuː/, Hokkien POJ: Phîⁿ-ô͘ or Phêⁿ-ô͘ ) or Pescadores Islands are an archipelago of 90 islands and islets in the Taiwan Strait, covering an area of 141 square kilometers (54 sq mi). The largest city is Magong, located on the largest island, which is also named Magong. The Penghu islands were mentioned during the Tang dynasty and were inhabited by Chinese people by the Song dynasty, during which it was attached to Jinjiang County. It was formally incorporated as an administrative unit of China under the jurisdiction of Tong'an County of Jiangzhe Province in 1281 during the Yuan dynasty. It continued to be governed by Chinese dynasties with brief European occupations until it was ceded to the Japanese Empire in 1895. After World War II, Penghu has been governed by the Republic of China. The archipelago collectively forms Penghu County of Taiwan and is the smallest county of Taiwan.