Complex sentence: The Venetian merchant and traveler Marco Polo traveled to Inner Mongolia and spent several years in the service of Kubla Khan, and gave a lengthy description of Xanandu in the journal of his travels, first published in about 1299.
Split into simpler sentences: The Venetian merchant and traveler Marco Polo traveled to Inner Mongolia and spent several years in the service of Kubla Khan. He gave a lengthy description of Xanandu in the journal of his travels, first published in about 1299.