Poor hygeine and lack of medical knowledge caused many diseases in the Medieval period. The environment was extremely unsanitary, as proven by the open sewers and garbage dumped in the river Thames(in England). Some common diseases are listed below:
dysentery
diphtheria
flu
Typhoid
smallpox
leprosy
And an obvious one is the Black Plague- Caused by fleas carried by rats. The Black Plague took a third of England's population.
An axe or a spear were possibly most common.
Kidknapping, burgling and stealing were most common
Wool would have been the most common material.
In the medieval era. At least it is most common known to be in the medieval era.
During the medieval times, few people had an education or could read and write. With that said, it was common among the upper classes of all of Europe use Latin as the language that most of the educated classes were taught.
An axe or a spear were possibly most common.
Kidknapping, burgling and stealing were most common
Wool would have been the most common material.
wet tail is the most common.
accidents
in african countries the most common is HIV/AIDS
The most common was the morality play, which was generally a story taken directly from the Bible or an "Everyman" allegory.
Flutes were widely used, and if you include all kinds of flutes, side blown and end blown, they were among the most common of medieval instruments. There is a link below.
Most people would stupidly say "The 60's or 70's!" but that's not true, hallucinogens were most common in Medieval times and earlier
The black death
Because the arboviruses require an arthropod to pass them along to humans, the most common times of year for these illnesses include summer and fall, when mosquitoes and ticks are most prevalent.
People submit to Christianity during those period so that the Germanic Tribes wouldn't harm them.