Speaking of headless men, here's the official website of the Hereford Mappa Mundi map discovered beneath the floor of an English Cathedral, dating to 1285 A.D. While a special museum website permits in-depth exploration of the map, Google for some reason warns people away:
https://www.themappamundi.co.uk/mappa-mundi/This bird's eye view of the map shows its orientation with East on top. What is only noticeable close-up is that even in 1285 A.D., the compass must have existed, because a hole is punctured in the center of the map, which is framed by a perfect circle.
The headless men south of the Nile River were referred to as Blemmyes.
Details:
*A man riding a goat-like chimera beneath the surface of the earth
*Jason's golden fleece is located on the coast of the Black Sea
*A labyrinth drawing
*One-legged humanoids
*An inaccessible island at the top of the world
*Dog-man chimeras
*Constantinople is depicted upside-down in relation to everything else on the map
*A Phoenix sits on top of a bare tree located in Asia
*The tree of the sun and the tree of the moon tell Alexander the Great's fortune
*Mouthless people
*The island of horse-hoofed men
*Bat people
*Cannibals
*Giant birds capable of raptoring elephants
*A flying salamander
*Androgyne people
*Numerous bodies of water and land are out of place
*Numerous place names no longer exist
*Ostriches once occupied southern parts of Eurasia
*Mountains on the Baltic shore that no longer exist
*The Danes exist somewhere other than Denmark
*Monkeys are located in Norway
*The Orkney Islands were 22 fewer then
*Britain's topography was known by other names back then
*Britain's hills/mountains are largely missing
*A small hill in England is regarded as an important mountain
William Bevan undertook a detailed examination of the map in his 1873 book
MediƦval Geography: An Essay in Illustration of the Hereford Mappa Mundi, available on-line as a free e-book, upon which most of this post is based:
https://books.google.com/books?id=u_oHAAAAQAAJ&pg=PR8#v=onepage&q&f=falseBlevans, a British minister, is remarkably well-educated in the classics and in world geography, though he attributes all bodies out of place on medieval maps to the incredible ignorance of the cartographers, rather than considering that a cataclysm may have altered their positions.