Skeletons in a mass grave from 1720–1721 in Martigues, France, yielded molecular evidence of the orientalis strain of Yersinia pestis, the organism responsible for bubonic plague. The second pandemic of bubonic plague was active in Europe from AD 1347, the beginning of the Black Death, until 1750.
The cathedral in the Spanish city of Salamanca was constructed in 1102, and is therefore one of the oldest such constructions in the world. It features magnificent stone carvings on all its walls, but one of them is a bit more special than the others. It bears the depiction of what appears to be a fully dressed astronaut in a space suit, complete with details such as the sole of his shoes....see comment below.
Plague doctors - They were second rate, under-trained physicians. Many were not doctors at all, but people of other employments paid by towns. Plague doctor images that we are familiar with was not seen until the 1600s when the traditional plague doctor costume was created: heavy fabric cloak covered in wax to protect the doctors body & a mask to keep out the sick air. Masks had a long cone shape at the nose filled with scents to protect the doctor from bad air.