In June 1348, people in England began reporting mysterious symptoms. They started off as mild and vague: headaches, aches, and nausea. This was followed by painful black lumps, or buboes, growing in the armpits and groin, which gave the disease its name: bubonic plague. The last stage was a high fever, and then death.
Originating in Central Asia, soldiers and caravans had brought bubonic plague — Yersina pestis, a bacterium carried on fleas that lived on rats — to ports on the Black Sea. The highly commercialised world of the Mediterranean ensured the plague’s swift transfer on merchant ships to Italy, and then across Europe. The Black Death killed between a third and a half of the population of Europe and the Near East.
This huge number of deaths was accompanied by general economic devastation. With a third of the workforce dead, the crops could not be harvested and communities fell apart. One in ten villages in England (and in Tuscany and other regions) were lost and never re-founded. Houses fell into the ground and were covered by grass and earth, leaving only the
— source theconversation.com | Eleanor Russell, Martin Parker | 04 Jun 2020