Is this a run-on sentence?

in 1227, genghis khan, the mongol leader who conquered much of central asia, died he was buried in an unmarked grave, and its location remains a mystery today.

Based on what you know about travelogues and marco polo’s life, what is the best prediction for the purpose of marco polo’s writing? he wanted to persuade others to make the same journey to asia. he wanted to entertain readers with fictional tales based on his travels. he wanted to inform readers about what he saw and learned on his journey. he wanted to keep a careful record to map the lands between italy and china. c.