SINO-WESTERN CONTACTS
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and that the foreign country of Fu-lang itself did not arouse any curiosity among the writers. Europe, in any case during the thirteenth and fourteenth centuries, remained unknown to the Chinese. It was not until the arrival of the Portuguese, and, a little later, of the Jesuit missionaries in the sixteenth century that the two worlds were brought into closer contact. This relative disinterest in foreign countries is paralleled 100 years earlier by the poems of Yeh-lü Ch'u-ts'ai. He had been in Khwarezmia (today Russian Turkestan) with Chingis Khan's armies and wrote a number of poems on Western subjects. If one would put it in a flippant way, one would have to say that Yeh-lü in his poems seems to have been impressed not by the proud mosques and the ancient culture of that region but mostly by the grape wine and the water melons that were grown in Khwarezmia.
If we take the word Western in a broader sense than just European and include the Near East, then we find for the thirteenth and fourteenth centuries much more detailed information on "Westerners" and their influence on activities in China. Islamic civilization had some impact on China under the Mongols, and we have seen that certainly geography in China was flourishing, incorporating data on the non-Chinese world taken from Arab sources. The geographical interest of the Mongol court is also reflected in Kublai Khan's attempts to discover the sources of the Yellow River. Expeditions were sent and the reports that can be found in the dynastic history and also in another, private source the Cho-keng lu, printed in 1366 are a valuable source for the historical geography of the Ch'ing-hai region and Eastern Tibet. Islam had, of course, reached China much earlier, that is, under the T'ang in the eighth and ninth centuries A.D., but it was under the Mongol rulers that Muslims began to take part in Chinese life to a greater extent. The Muslim contribution to Chinese civilization under the Yüan seems to have been chiefly in the fields of science. Astronomy was highly developed in the Islamic countries. After the Mongols had conquered Iraq and Persia, not a few Muslim scholars went to China. A center for astronomy was the observatory in Maraghah (Azerbaijan) founded in or about 1258. Under the Ilkhan Hulagu or his successor a Marāghah astronomer, Jamal ad-Din, was dispatched to China with what may be called blue-prints for astronomical instruments. We find their Persian-Arabic names and a short description of