British Museum Inv. No. 92687: "6th C BC approx".
See also: Siebold, Jim. Slide 103. Archived 2016-11-09 at the Wayback Machine. Via henry-davis.com – accessed 2008-02-04. First published 1899, formerly also dated to an earlier period, c. 900 BCE. Raaflaub, Kurt A.; Talbert, Richard J. A. (2009). Geography and Ethnography: Perceptions of the World in Pre-Modern Societies. John Wiley & Sons. p. 147. ISBN978-1-4051-9146-3.
Robinson, Kenneth R. (2007). "Chosŏn Korea in the Ryukoku Kangnido: Dating the Oldest Extant Korean Map of the World (15th Century)". Imago Mundi. 59 (2): 177–192. doi:10.1080/03085690701300964. S2CID128416415.
McGuirk, Donald L. Jr. (1989). "Ruysch World Map: Census and Commentary". Imago Mundi. 41 (1): 133–141. doi:10.1080/03085698908592674.
British Museum Inv. No. 92687: "6th C BC approx".
See also: Siebold, Jim. Slide 103. Archived 2016-11-09 at the Wayback Machine. Via henry-davis.com – accessed 2008-02-04. First published 1899, formerly also dated to an earlier period, c. 900 BCE. Raaflaub, Kurt A.; Talbert, Richard J. A. (2009). Geography and Ethnography: Perceptions of the World in Pre-Modern Societies. John Wiley & Sons. p. 147. ISBN978-1-4051-9146-3.
Rothstein, Edward (19 January 2010). "Map That Shrank the World". New York Times, Arts, Exhibition Review. New York: New York Times Company. Retrieved 20 January 2010.
Robinson, Kenneth R. (2007). "Chosŏn Korea in the Ryukoku Kangnido: Dating the Oldest Extant Korean Map of the World (15th Century)". Imago Mundi. 59 (2): 177–192. doi:10.1080/03085690701300964. S2CID128416415.
British Museum Inv. No. 92687: "6th C BC approx".
See also: Siebold, Jim. Slide 103. Archived 2016-11-09 at the Wayback Machine. Via henry-davis.com – accessed 2008-02-04. First published 1899, formerly also dated to an earlier period, c. 900 BCE. Raaflaub, Kurt A.; Talbert, Richard J. A. (2009). Geography and Ethnography: Perceptions of the World in Pre-Modern Societies. John Wiley & Sons. p. 147. ISBN978-1-4051-9146-3.