Gaillard's Medical Journal and the American Medical Weekly (1884)

In 627, the heat was so great in France and Germany, says the London Standard, that all springs dried up; water became so scarce that many people died of thirst.

In 879, work in the field had to be given up; agricultural laborers persisting in their work were struck down in a few minutes, so powerful was the sun. In 993, the sun’s rays were so fierce that vegetation burned up as under the action of fire. In 1000, rivers ran dry under the protracted heat, the fish were left dry in heaps and putrefied in a few hours. Men and animals venturing in the sun in the summer of 1022 fell down dying.

In 1132, not only did the rivers dry up, but the ground cracked and became baked to the hardness of stone. The Rhine in Alsace nearly dried up. Italy was visited with terrific heat in 1189; vegetation and plants were burned up. During the battle of Bela, in 1200, there were more victims made by the sun than by weapons; men fell down sunstruck in regular rows. The sun of 1277 was also severe; there was an absolute dearth of forage.

In 1303 and 1304, the Rhine, Loire, and Seine ran dry. In 1615, the heat throughout Europe became excessive. Scotland suffered particularly in 1625; men and beasts died in scores. Meat could be cooked by merely exposing it to the sun. Not a soul dared to venture out between noon and 4 p.m. In 1718, many shops had to be closed; the theatres were never opened for several months. Not a drop of water fell during six months.

In 1753 the thermometer rose to one hundred and eighteen degrees. In 1779, the heat at Bologna was so great that a large number of people died. In July 1793, the heat became intolerable. Vegetables were burned up and fruit dried upon the trees. The furniture and woodwork in dwelling-houses cracked and split up; meat became bad in an hour.