Dragon's Tail (peninsula)

Chinese Muslims traditionally credit the Companion Saʿd ibn Abi Waqqas with having missionized the country as early as the 7th century; the trading community was large enough that a large-scale massacre is recorded at Yangzhou in 760.

[4][5] Bartholomew Dias passed the Cape of Good Hope during a major storm in 1488; within a year or two, Martellus had published a world map showing the communication of the Atlantic and Indian Oceans, creating an unconnected south point of Africa and transforming the eastern end of Ptolemy's shoreline into a great peninsula, similar to that described by Al-Khwārizmī.

In the mid-16th century, António Galvão mentioned a map that had been purchased in 1428 by Dom Pedro, eldest son of John I, which described the Cape of Good Hope and included "the Strait of Magellan" under the name "Dragon's Tail" (Portuguese: Cola do dragam).

[13] Columbus considered himself to have arrived at Champa, which figured prominently in three inscriptions on Martellus's 1491 map, and cartographers began to draw discoveries in Central America on the eastern shore of the phantom peninsula.

[15] The map has lost the Great Gulf and the peninsula continues to be too large, but it has merged with the Golden Chersonese as a single landform and bent more towards the east, apparently influenced by Arabic sources.