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Denis and Francis went to go and see a piece of paper that was written by Marco Polo but they were not allowed to see it. Marco Polo wrote the paper in Venice before beginning his journey.

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When both Marco Polo and Denis and Francis went to Jerusalem they both obtained Holy oil from the place. When Marco Polo went to Jerusalem he obtained the oil at a traditional holy site. Denis and Francis got it at a Orthodox Church.

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Once Denis and Francis arrived in Turkey there were cars driving past them as well as tourist. There was also Pepsi, Coke, and Kebabs at every corner store on the streets. There was no such thing as a car during Marco Polo's time and probably not even a thought of one yet. There was a harbor that Denis and Francis went by with boats, Marco Polo would have seen the same thing except it would have been British ships.

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It was known as Persia during Marco Polo's time of exploration but when Denis and Francis started their exploration it was know as modern day Iran. Both went to Uzbekistan after entering Iran

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When Denis and Francis went to Persia/Uzbekistan they needed Visas in order to get out of the country. When Marco Polo went to Persia/Uzbekistan he did not have to worry about getting a Visa. Both Denis and Francis and Marco Polo took the Uzbekistan route because the Iran route did not work.

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When Denis and Francis went to Afghanistan they had to get escorted in trucks with guards that had guns and explosives. When Marco Polo went to Afghanistan he did not have to worry about anybody with guns or explosives because they were not invented yet but he did get ambushed by a group of soldiers. One similarity when both made the trip to Afghanistan is that they were in serious danger of soldiers.