evidence: By the Song dynasty, China maintained that it was naming and claiming territory in the island chains it calls Nansha (the Spratly Islands) and Xisha (the Paracel Islands). [...] For example, in the UN’s archival end-notes: "On 12 June 1985, the Secretary-General received from the Government of China the following communication: ‘The so-called Kalayaan Islands are part of the Nansha [Spratly] Islands, which have always been Chinese territory. The Chinese government has stated on many occasions that China has indisputable sovereignty over the Nansha Islands and at the adjacent waters and resources.’" [...] "In the 1970s and 1980s, China took over control of much of the Paracel Islands in the northern SCS [South China Sea] and Johnson South Reef in the Spratly Islands in the southeast quadrant of the SCS, both in Vietnam’s EEZ," the United States department of defence wrote.