evidence: After Mao Zedong forced Chiang and his armies to retreat to Taiwan in 1949, the same map published under Chiang was adopted by the PRC. The map, entitled "Map of South China Sea Islands," included the Paracel Islands, the Spratly Islands, the Pratas Islands, the Macclesfield Bank, and the Scarborough Shoal. The PRC eventually submitted their map to the United Nations in May 2009 — greatly alarming the littoral states of the South China Sea.