As the black death spread in the mid-14th century, which region tended to experience the greatest loss of life?

Most of the immigrants who came to the united states in the late 1800s often returned to their home countries. were skilled laborers and merchants. were either protestant or catholic. came to escape famine and starvation.

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

Is revlon performing better or worse than it was the previous day? how do you know?