Tham khảo Hiệp_ước_Tordesillas

  1. ↑ Horst Pietschmann, Atlantic history: history of the Atlantic System 1580-1830, Göttingen: Vandenhoeck & Ruprecht, 2002, p. 239
  2. ↑ Parise, Agustín (ngày 23 tháng 1 năm 2017). Ownership Paradigms in American Civil Law Jurisdictions: Manifestations of the Shifts in the Legislation of Louisiana, Chile, and Argentina (16th-20th Centuries). BRILL. tr. 68. ISBN 9789004338203. Truy cập ngày 21 tháng 9 năm 2018.  Đã bỏ qua tham số không rõ |df= (trợ giúp)
  3. ↑ Emma Helen Blair, ed., The Philippine Islands, 1493–1803 (Cleveland, Ohio: 1903). Frances Gardiner Davenport, ed., European Treaties Bearing on the History of the United States and Its Dependencies to 1648 (Washington, DC: Carnegie Institute of Washington, 1917), 100.
  4. ↑ Newlyn Walkup, Eratosthenes and the mystery of the stades
  5. ↑ Donald Engels, "The length of Eratosthenes' stade", The American Journal of Philology 106 (1985) 298–311.

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