The Black Death is a deadly disease that swept through Europe between 1347 and 1351. It arrived in Europe through trade ships and killed over 20 million people 25-50% of Europe was dead. In the 14 century, the plague spread rapidly across Europe and decimated. The Black Death was an epidemic. The disease spreads through the air and through the bites of infected rats and fleas. Doctors used simple techniques such as bloodletting and superstitious such as burning herbs and bathing in rose water and vinegar. Some people thought that the Black Death was a kind of punishment from god, they would punish themselves to say they were sorry. The plague epidemic faded out after three years but reappeared every few generations for centuries. Modern sanitation and public health practices 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 to workers demanding higher wages land lords refused to pay them. Peasants left the manors and went to cities to find employment. The disease also hurt the church because they didn't understand why their prayers weren't being answered.