The plague arrived in Europe in 1347, first reaching Cyprus in the summer and then Sicily in October through a Genoese fleet. By winter it had spread to Italy, and by 1348 it had reached major cities like Marseilles, Paris, and England. It followed trade routes along rivers like the Rhine into Germany and the Low Countries the same year. The worst year was 1348, and it took longer to reach more peripheral areas like Norway in 1349 and parts of Eastern Europe and Russia by 1350-1351. The disease tended to follow trade routes and concentrate in cities, traveling from the Near East to Western Mediterranean and then Northern Europe before returning East.