1889-1929 The international expedition headed by the Swiss G.O. Dyhrenfurth studies possible ways to the top of the Gasherbrum II and gets to 6250 meters on the south flank.
1956: First ascent via the southwest spur by an Austrian expedition headed by F. Moravec. Fritz Moravec along with Josef Larch and Hans Willenpart starts from a bivouac at 7700 meters via the east spur to the summit on 7th.
July 1975: Second ascent by a French group, 19 years after the first ascent. During this expedition, the first victim at the Gasherbrum has to be lamented. In this year, three expeditions get to the summit, among others a Polish women team headed by W. Rutkiewicz.
1979: A Chilean and a German expedition succeeded in the 6th and 7th ascent.
1982: Reinhold Messner summits with two Pakistanis.
1984: During the legendary double ascent of two 8000 peaks, Reinhold Messner and Hans Kammerlander get to the summit of Gasherbrum II and afterwards Hidden Peak (Gasherbrum I). Counting and registration is more complicated during the following years because some illegal teams got to the summit. Both peaks belong to the less frequently climbed 8000 peaks. Per year, only 2 to 3 permits are given.
