1000 year old Flat Earth map?

this research on flat earth theory becoming fascinnating as you search deeper and deeper no matter if its the truth or not.
now if that map is real this can be a huge field for research .
according to this map there are 33 continents in our world most of them outside the antarctic "ring" of ice...flat earth theory supporters saying that we are surrounded by a huge ring of ice and thats what we call antarctic.in a few words antarctic is not a continent but a huge wall of ice that surrounding the known world.