In the mid of the 13th century,  in 1254, a boy was born in the Polo family who were  overseas merchants and lived in the city of Venice, Italy. He was called Marco. 

Marco's father Nicollo and uncle Maffeo returned home to Venice after travelling to Asia, Nicollo found out that his wife had died, leaving fifteen-year-old Marco in his care . Marco was very clever and smart boy at that time.

    They left their home for China in 1271 taking with them camels, horses, and lots of goods.

On the way the Polos visited the Caucasus, Persia, India, and Afghanistan.

They also crossed the Gobi Desert. Four years after beginning their journey, the Polos reached China

After several years, Khan finally said that the Polos could leave China. They escorted the princess, who was to marry a Persian king.  The princess and the Polos sailed south to the China Sea.

 It was a long, difficult voyage. They stopped at Borneo, Sumatra, Ceylon, and other places until the ships reached the Persian Gulf. After leaving the princess in Persia, Marco, his father, and his uncle finally went to the Black Sea and headed for home