The Black Death was a deadly plague/disease that swept through Europe between 1347 and 1351;also known as the Bubonic Plague.
The disease spread through the air and through the bites of infected rats and fleas.
Doctors used simple techniques such as bloodletting, boil balancing,and superstitious such as burning herbs and bathing in rosebud and vinegar.
The plague epidemic faded out after three years but reappeared every few generation for centuries. Modern sanitation and public health practice have changed how the disease spread but have not eliminated it.
So many people died there was a serious labor shortage all over Europe which workers demanding higher wages.