What the Black Death is
The Black Death is a deadly disease that spread through Europe during 1347-1351 it killed almost over 20million people in Europe and is also known as bubonic plague.
How it spreads
This disease spreads through the air also through the bites of infected rats and fleas. There's also another way it can spread which is through contagion which means the passing the disease by on to another.
Cures for the plague
To cure it doctors use simple techniques like blood letting and boil-balancing. They also burn herbs while bathing in rose water and vinegar.
The plague faded out after three years but reappeared every few centuries. The modern sanitations has changed the disease.