Alex Clausen is a map dealer. And although that designation ... The chart is the only complete 14th century portolan known to exist outside Europe. Although not the oldest portolan in existence ...

The rare 14th-century portolan chart is worth $7.5 million. Robert Gauthier / Los Angeles Times / Getty Images Last fall, Christie’s auctioned off a “highly unusual” nautical map as part of ...

A map pinpointing hundreds of homicides in 14th-century England could help teach medieval history. By Isabella Kwai A spice merchant stabbed by a fruit seller over a longstanding feud. A street ...

EISNER: The Medieval Murder Maps are three maps where we have plotted cases of murder that occurred in the 14th century in London, Oxford and York. MARTÍNEZ: That's right - murder. The map shows ...

It's likely that the islands existed in the 14th century, when a cartographer created the map, and were the remains of a much larger land known in Welsh mythology as "Cantre'r Gwaelod" or "Maes ...

La Jolla map dealer Alex Clausen came across this rare 14th century nautical chart at an estate sale for Ann and Gordon Getty. (Robert Gauthier / Los Angeles Times) ...

La Jolla map dealer Alex Clausen knew there was something unusual about the nautical chart he spotted at a Getty estate sale. His careful eye uncovered a 14th century treasure he purchased for a ...