I’ve been looking at books about Marco Polo and the texts get longer and longer as the centuries have progressed. It seems authors have added to his narrative and when you look at the original story, there are large holes in his account. What evidence do we have that he actually went to China and the Mongol court? Was it as extensive as he claimed?

Edit: For example, Marco Polo claimed the Mongols made him a Governor of the Chinese city of Yangzhou which he oversaw for 3 years. There is no evidence of this occurring in any documents in Yangzhou or in China. Nothing