The left photo shows early mountaineers playing volleyball at the base camp of Mount Qomolangma; the right photo shows a mountaineer playing golf on the artificial grass at the base camp on May 16, 2020. (Photos: People's Daily online)
The upper photo shows members of the mountaineering team advancing along a snowy slope at an altitude of 7,000 meters in 1960; the lower photo shows the modern climbing equipment used by the surveying team in 2020.
In the upper photo, on June 7, 1960, Chinese mountaineers pose for a photo with flowers after their triumphant return to Lhasa from the north slope of Mount Qomolangma; in the lower photo, Chinese mountaineers are presented with trophies at a ceremony marking the 10th anniversary of the Tibetan mountaineering team's successful ascent to 14 of the world's highest peaks at 8,000 meters above sea level on July 12, 2017.
In the left photo, Chinese meteorologists collect meteorological data at the foot of Mount Qomolangma on June 9, 1975; the right photo shows a meteorological emergency support vehicle at the base camp of Mount Qomolangma on May 25, 2020.
The left photo shows the Chinese mountaineering team studying at an altitude of 6,000 meters on June 13, 1975; the right photo shows workers from China Mobile carrying out maintenance at a 5G base station at the advance camp of Mount Qomolangma at an altitude of 6,500 meters on May 21, 2020.
The upper photo shows a public toilet built at the base camp of Mount Qomolangma in the 1990s; the lower photo shows a temporary environmentally-friendly toilet built at the base camp of Mount Qomolangma on May 3, 2020.
The left photo shows tents set up at the base camp of Mount Qomolangma during the spring climbing season in 2005; the right photo shows tents becoming garbage dump sites in 2020.
The left photo shows mountaineers climbing the mountain through the "China ladder" on May 27, 2008; the right photo shows a mountaineer, who reached the summit of Mount Qomolangma in 1975, posing with the "China ladder" on July 10, 2019.