Using Marco Polo in His Travels Around the Mongol Empire

In the early 20 first century, china is emerging as a super power. One of the chapters i enjoyed writing most in this book was ha chapter on merchants and the commercial revolution of the later middle ages. And i started that chapter with marco polo. Because one of the things i wanted to do in powers and thrones is, as well as have the sort of big ideas about the middle ages, have lively pen portraits of the characters from this time. Now, to what degree marco Polo's reminiscences about his 25 years travelling round the chinese emperor of the mongols, are fantasy, and to what degree they're real? As hiwe've