John D. Champlin, Jr., The American Cyclopædia — Norway
“ The national prosperity of Norway declined from this epoch. Wars with Denmark exhausted the people. A monopoly of trade in the hands of merchants of the Hanseatic league checked the national industry; and the plague known as the black death, which broke out in 1348, ravaged the kingdom for more than two years to an unparalleled extent, destroying two thirds of the population. ”
