The Polos were welcomed back by Kublai Khan, who was at his winter residence, Cambaluc, where “are to be seen in wonderful abundance the precious stones, the pearls, the silks, and the diverse perfumes of the East.” Marco mastered the four languages most in use at court. The Khan, seeing that he was both intelligent and discreet, sent him on public business to Kara Korum, Cochin-China, India, and other parts of the great empire. When he returned, he was able to give the Khan information stored in his memory and his note books not only about the business of which he had charge but also about the manners, customs, and peculiarities of the peoples he had visited. He became a great favorite with the Khan and was, we are told, made governor of the great city of Yang-Chow.

At the end of fifteen years, the Polos desired to revisit their home, and the Khan consented on condition that they would return to Cathay. Some idea of the difficulty of the return journey may be gathered from the fact that it took twenty-six months. We are told that their kindred did not recognize the long-absent merchants. They gave a grand feast in oriental style; at the end they donned costumes suiting their rank and ripped apart their travel-worn garments, displaying dazzling wealth of rubies, sapphires, and other gems therein concealed.

The Polos had been at home only about three years when there arose war between Genoa and Venice, which were commercial rivals. The hostile fleets met in battle and the Venetians were defeated. Among the seven thousand prisoners was Marco Polo, who was an officer on one of the Venetian galleys. He was put in prison in Genoa and there he remained about a year. One of his fellow-prisoners was Rusticiano of Pisa, an author. The Pisan was much interested in the wonderful adventures of Polo and wrote them down from dictation.

The book consists practically of two parts. The first part, or prologue as it is called, relates the circumstances of the two Polos’ first visit to the Khan’s court, their second voyage accompanied by Marco, and their return home by way of the Indian Seas and of Persia. Polo informed the Europeans, who thought that eastern Asia ended in swamps and fog and darkness, that there was open sea east of Asia and that he, his father, and his uncle had sailed from the southeast coast of Cathay, or China, to the Persian Gulf. The second part of Polo’s “Travels” describes the different states and provinces of Asia, and the court and rule of Kublai Khan. Little is told of the traveler himself, but we gather that he was a brave, shrewd, and prudent man.

After Marco Polo’s release from prison in 1299, he seems to have returned to Venice, married, and lived quietly in his native city until his death in 1324.

“The Book of Marco Polo,” as Rusticiano of Pisa called his work, was read with much interest and was translated into many languages. For many centuries it was the only European description of the far East, written by an eye-witness. Polo was accused of falsehood and exaggeration, but as people learned more about the lands he described, they found that, in the main, he was right; he was truthful and accurate in describing what he had seen, but he was sometimes misled by the tales of others to whom he listened. In the prologue, Rusticiano says that he describes things seen by “Messer Marco Polo, a wise and noble citizen of Venice.... Some things indeed there be therein which he beheld not; but these he heard from men of credit and veracity, and we shall set down things seen as seen, and things heard as heard only, so that no jot of falsehood may mar the truth of our book and that all who shall read it or hear it read may put full faith in the truth of all its contents.”

Marco Polo was the first European traveler to make his way across the whole length of Asia, naming and describing the kingdoms which he visited. He was the first to describe the Pamir plateau, “the roof of the world,” the highest level country on the globe, the deserts and flowery plains of Persia, the wealth and size of China, the manners and customs of its people, and the splendid court of its emperor, the great Kublai Khan. He was the first to describe Tibet, and to tell of Burmah, Cochin-China, Siam, Japan, Java, Sumatra, Ceylon, and India, not merely as names but as places he had seen and known. He gave an account of the secluded Christian empire of Abyssinia, of the tropical luxuriance of the far-off islands, of the negroes and ivory of Zanzibar, of vast and distant Madagascar, of Siberia and the Arctic shores with their dog-sledges, white bears, and reindeer. In brief, he described Asia from Siberia and the Arctic Ocean, to Ceylon, from the Adriatic Sea to the Pacific Ocean, and to him Europe owes its first geographical knowledge of Asia.

In the time of Marco Polo, the Mongolian Empire was probably the largest in the world. He informed Europeans that in the East, which they thought inhabited by savage and ignorant people, was a wealthy and civilized kingdom, swarming with inhabitants and dotted with huge cities. He described the palaces and pleasure grounds of Cambaluc, or Peking, somewhat as they are to-day. He told how “black stones” were dug out of the earth and burnt for fuel, because they “burn better and cost less” than wood,—whereat Polo marveled. He told about the emperor’s granaries for wheat, barley, millet, and rice, about the wool, silk, hemp, spices, sugar, gold, and salt of the country. At first it seems strange that Polo did not mention tea, for hundreds of years the national drink of the Chinese, but we must remember that he was associated with the Tartar ruling classes and so was to a great extent ignorant of the manners and customs of the subject natives.

Cipangu or Cipango—that is, Japan—was made known to Europeans by Polo. He described it as “an island in the high seas,” and said that the sea around it was studded with thousands of islands rich in spices and perfumes. Cipango was the only country attacked by Kublai Khan which was able to resist his power. Its people were civilized and it was rich in gold and in wonderful pearls, white and rose-colored. Polo says “rubies are found on this island and in no other country in the world but this.”

He described India,—the scanty garments of the people and their magnificent jewels. He gave an interesting account of the diamond mines of Golconda, and of the cotton plant—more valuable even than those rich mines—from which fiber is obtained for clothing. He visited and described the places from which are obtained ginger, pepper, cinnamon, camphor, and other gums and spices.