Editing First ascent (section)

===Mountaineering===

* First ascent of Everest: Arguably the most famous case of an unverified first ascent is whether [[George Mallory]] and/or [[Andrew Irvine (mountaineer)|Andrew Irvine]] reached the summit of Everest on the [[1924 British Mount Everest expedition|1924 Everest expedition]].  Subsequent Everest expeditions have not been able to answer the question including the 1999 [[Mallory and Irvine Research Expedition]], and the [[2007 Altitude Everest expedition]].

* First ascent of [[Cerro Torre]]: In 1959, [[Cesare Maestri]] claimed he and {{ill|Toni Egger|it}} summited, but that Egger who had the camera, was swept to his death by an avalanche on the descent. [[Lionel Terry]] called it "the greatest climbing feat of all time".<ref name=NG1/> Inconsistencies in Maestri's account, and the lack of equipment on the route, led most to doubt his claim.<ref name=NG1>{{cite web | magazine=[[National Geographic]] | url=https://www.nationalgeographic.com/adventure/article/patagonias-cerro-torre-climbing-controversy-maestri-unbolted | title=Patagonia's Cerro Torre Gets the Chop: Maestri Unbolted | first=David | last=Roberts | author-link=David Roberts (climber) | date=29 January 2012 | accessdate=8 February 2023 | archive-date=10 February 2023 | archive-url=https://web.archive.org/web/20230210135029/https://www.nationalgeographic.com/adventure/article/patagonias-cerro-torre-climbing-controversy-maestri-unbolted | url-status=dead }}</ref>  Maestri further inflamed the controversy by returning in 1970 and drilling 400 bolts onto his new ''Compressor Route'', to claim the second ascent.<ref name=NG1/> In 2012, yet more controversy followed when American climbers [[Hayden Kennedy (climber)|Hayden Kennedy]] and Jason Kruk, removed Maestri's bolts, enabling [[David Lama]] and Peter Ortner to make the FFA, for which all four won a 2013 [[Piolet d'Or]].<ref name=NG1/>