So far, so good. But the problem is that Marco Polo's exact date and place of birth cannot be found in the Venetian archives, which is strange because these were among the very best in Medieval Europe. So, while he is mentioned as a citizen, he seems not to have been born in the city of Venice. At the time Venice was a powerful mercantile nation that had vastly expanded its boundaries.
Some historians believe that Marco Polo was born on the now Croatian island of Korčula, then called Curzola by Venetians.
So many Slavs (not slaves) from the Dalmatian Coast arrived as sailors in Venice, that the long quay by St. Mark's was and is known as Riva degli Sciavoni ('Quay of the Slavs'). Marco Polo was buried in a Slavic quarter in Venice.
If Marco Polo was originally from – modern day – Croatia, he would also have have a Slavic name. And, as some think, he had: Marco Polo was once called Marko Pillic.
|[Supposed home of Marco Polo on Korčula/Curzola]|
 Olga Orlić: The curious case of Marco Polo from Korčula: An example of invented tradition in ScienceDirect - 2013