Subdivisions 272 Facts Known About India 273 Marvels of India 274 Legend of St. Thomas in India 275 Visit of Patriarch John of India to Rome 278 Indian Ocean 279 Islands of the Indian Ocean 280 Al-Battānī on the Indian Ocean 280 Scythia and Central Asia 281 Benjamin of Tudela on Central Asia 282 Prester John 283 Origins of the Legend 283 Prester John’s Kingdom As Described in His “Letter” 285 Alliance With Prester John Desired 286 Gog and Magog 287 Western Asia 288 Mesopotamia 289 Benjamin of Tudela on Baghdad 289 Benjamin of Tudela on Arabia 291 Syria and Palestine 292 Geographical Knowledge Enlarged by the Crusades 292 Occidental Population of the Levant 294 European Occupation of Syria 294 Asia Minor 295 Western Asia As Described by the Crusaders 296 Africa 298 Egypt As Part of Asia 298 Descriptions of Egypt 299 Africa West of Egypt 300 Ethiopia 302 Sources of the Nile 304 Traditional View of Central Africa 306 The Mediterranean Sea 307 The Name “Mediterranean” 307 The Mediterranean During the Crusades 307 Instructions for Navigation in the Mediterranean 308 Islands of the Mediterranean 309 Sicily 311 Europe 312 Northeastern Europe 312 Russia 312