What was the Black Death and where did it spread?

Black Death, pandemic that ravaged Europe between 1347 and 1351,The Black Death was not an airborne contagious disease and did not thrive the epidemic westward to Mediterranean ports,

Explanation:

disequilibrium means that either supply is greater than the demand for an available good, or that the demand for a product outstrips the available supply. it implies that the price for a is either too low creating large demand, or too high creating a large surplus of supply.