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untries. Through the Middle Ages she preserved much of the heritage of ancient skill and learning; by her Renaissance studies she recovered much that had been temporarily lost; and in geographical science she early made progress of her own. "The greatness of the Germans, the courtesy of the Frenc

ed men from Venice, Genoa, Pisa, and Florence emigrated to other lands, carrying with them science, skill, and ingenuity unknown except in the advanced and enterprising Italian city republics and principalities. Italian mathematicians made the calculations on which all navigation was based; Italian cartograp

Zeitalter der Entdeckungen," 217.] This was no new condition of affairs. In the time of Edward II. and Edward III., in the service of England, we find the names of Genoese such as Pesagno and Uso de Mare. Another Genoese, Emanuel Pesagno, was appointed as the first hereditary admiral of the fleet of Portugal, and by the terms of his engagement was required to keep the Portuguese navy provided with twenty Genoese captains

ly and by dim report. Down to the middle of the thirteenth century the total knowledge of the lands and waters of the globe possessed by the educated men of Europe was not appreciably greater than it ha

rther. What was known of the world to Ptolemy in the second century made up the sum of knowledge possessed by the geographers of all the following centuries to the thirteenth. Indeed, the mediaeval tendency to establish symmetrical measurements, to adopt fanciful expl

they contributed practically nothing to the general geographical knowledge of Europe. Nor did Christian, Jewish, or Arabic accounts of Eastern lands written by travellers of the eleventh, twelfth, and early thirteenth centuries become wid

d. Three incentives habitually carry men into distant and unknown lands-missionary zeal, desire for trade, and curiosity. Actuated by one or other of these influences, an increa

ern Europe. The first of these was John de Piano Carpini, a native of Naples, who belonged to a Franciscan house near Perugia. He went through Bohemia, Poland, southern Russia, and the vast steppes of Turkestan, and found th

shores of the Black Sea, the Caspian, and the Sea of Aral, and then passing northward to Karakorum. Returning he crossed the Caucasus and passed through Persia and the lands of the Turks, finally reaching the Mediterranean throug

these more southern lands quite as full as were those already mentioned concerning the northern parts of the great eastern continent. The most famous of all mediaeval travellers in the East were the Venetian merchants Nicolo and Matteo Polo and their nephew Marco. These enterprising traders, leaving their warehouses in Soldaia on t

of his vast empire. When, in 1292, the Polos obtained permission to return home they followed the longest and most important of the three main trade-routes which have been described. They sailed from Zaiton, a seaport of China, and passing along the shores of Tonquin, Java, and farther India, made

travels with which he whiled away the weary days of his captivity, and the gathering of these into a book which spread widely

nds of miles, and they described, in the main, what they saw, although, of course, they repeated, with more or less of exaggeration, much which they only knew from conversation or from hearsay. Besides the written stories of such experiences, other Europeans who accompanied these travellers, or who made independent journeys to various parts of Asia, spread knowledge of the same things. The author

ed been known to the ancients, and mentioned by tradition as the source from which came certain well-known products; but under the name of Cathay, which Marco Polo and his contemporaries gave to it, it attained a new and strong hold on men's imaginations. Its myriad population, its hundreds of cities, its vast wealth, its advanced civilization, its rivers, bridges, and ships, its manufactures and active trade, the fact that it was the easternmost country of Asia, washed by the waters of the external ocean-all made Cathay a land o

nal," October 21, 23, 24, 26, 30, November 1, etc.] To the westward also ancient knowledge was reacquired and made clearer. The "Fortunate Isles" were rediscovered and identified as the Canaries by the Italian Lancelot Malocello in 1270 [Footnote: Beazley, Hakluyt Soc, "Publications," 1899, lxi, lxxviii.], then forgotten and rediscovered in 1341 [Footnote: Ibid, lxxx; Peschel, "Zeitalter der Entdecktungen," 37.] by some Portuguese ships, manned by Genoese, Florentines, Castilians, and Portuguese. In 1291 Tedisio Doria and Ugolino Vivaldi, Genoese citizens, eq

in exactitude and clearness of knowledge of the Old World. Though the bounds of geographical knowledge were not carried much farther,

limit of the world; ignorant men may still have believed that the sea boiled at the equator, and that men with dogs' heads and other monsters had each its own part of the earth; but Italians of any education, especially those acquainted with the writings of their c

at; and, secondly, the opposition of churchmen, who interpreted certain texts in the Bible in such a way as to forbid the conception of the earth as a sphere. Yet neither of these influences was strong enough to prevail over the opinions of the majority of learned men. To them the earth was round, as it was to Aristotle, Ptolemy, and other ancients. [Footnote: Ruge, Zeitalter der Entdeckungen.] The bal

bit of thinking of the earth as a sphere. In all probability Columbus represented the beliefs of his class, as well as his own, when he said, "I have always read that the world, comprising the land and the water, is spherical, as is testified by the investigations of Ptolemy and others, who have proved it by the eclipses of the moon and other observations made from east t

e surface of the spherical earth, the rest of its surface being presumably covered with water. There was more or less speculation about the existence of other habitabl

ries. Their maps are still much like picture-books, filled with biblical and literary lore, indicating but a slight attempt to incorporate exact measurements and outlines. A development more r

the fourteenth and early fifteenth centuries they reached a wonderful degree of accuracy. The coasts, bays, islands, and promontories of the Mediterranean were plotted out in them and drawn with striking correctness. Some four hundred such sketch-maps remain to us, drawn by Italians from the fourteenth to the sixteenth centuries, besides nearly a hu

ani rather than on mediaeval maps, and at the same time added such enlarged informatio

of Europe to the British Isles and on into the Baltic, or to pass down the Atlantic coast of Africa to Cape Nun, he might rely on the maps and charts which the Italian geographers could furnish him. Or if he launched his galleys on the Red Sea he might use their guidance down the east coast of Africa to the equator. He would also find tolerably accurate descriptions of all the southern coasts of Asia. In the interior a traveller by land could know beforehand the main features of the

ns when the sun and stars were obscured. More than one mediaeval writer describes the process by which a needle is rubbed on a piece of magnetic iron, then laid on a straw or attached to a piece of cork, and floated on water till its point turns towards the north star. [Footnote: Alexander Neckham, De Utensilibus; De Natura Rerum, book II., chap, xcviii.; Guyot de Provins, La Bible, Jacques de

and the spider-web net-work of "compass-roses" on many of the early maps shows how anxious the map-maker was to provide lines along which the navigator might lay his course according to his compass. The makers of the better class of portolani evidently had the use of the compass in drawing their charts. [Footnote: Santarem, Essai sur L'Histoire de la Cosmographie, I., 280-305.] The changed position of the heavenly bodies as the early traveller passed northward or southward struck him with especial force. Marco Polo, describing the island o

hung by a ring from a peg in the mast or from the hand, so that gravity would make one of its bars horizontal. Then the other bar was sighted to point towards some heavenly body. Chaucer, in 1400, gave to his "litel Lowis my sone" an astrolabe calculated "after the latitude of Oxenford," and wrote a charming treatise to explain to him in English its use, "for Latin ne canstow yit but smal, my lyte sone." In this treatise he described to him, among other things, "diverse tables of longitudes and latitudes of sterres." [Footnote: Chaucer, A Treatise on the Astrolabe, Prologue; Skeat, The Student's Chaucer, 396.] By means of either of these instruments latitude c

ated navigators, made a part of the European background of American history as truly as did the incentive to exploration afforded by the search for new routes to the East. Of course much progress remained to be accomplished in the making of maps and globes, in the improvement of instruments, and in the calculation of tables during the period of discover