Because the borders of Germany have often changed during the course of the centuries, there were different highest mountains in the past. For example, during the time of the Holy Roman Empire up to 1806, the Ortler in present-day South Tyrol, at 3,905 m, was the highest German mountain. During the colonial period to 1918 Mount Kilimanjaro in the colony of German East Africa, at 5,895 m, was officially the highest mountain of the German Reich. During the Nazi era from 1938 to 1945 this title went to the Großglockner which, at 3,797 m, is today the highest mountain in Austria.