when did she climb everest?
In 19th May 1970.
Junko Tabei
After Tabei and Hirakawa successfully summited Annapurna III on 19 May 1970, the Joshi-Tohan Club decided to tackle Mount Everest. The club created a team known as the Japanese Women's Everest Expedition (JWEE), led by Eiko Hisano, which would attempt to summit Mount Everest. JWEE contained 15 members, most of them working women who came from a range of professions. Two of the women, including Tabei, were mothers. They applied for a climbing permit for Everest in 1971, but had to wait four years to receive a place in the formal climbing schedule. 

who is the first woman climbed mount everest Junko Tabei. where was she born? Miharu, Fukushima. when did she first start climbing? She began mountain climbing at the age of ten, which mountain did she climb? Mount Nasu. what is known about this mountain? UNANSWERABLE who were her parents? Her father was a printer.
wiki:1887066
Junko Tabei [SEP] 1975 Everest expedition
They used the same route to ascend the mountain that Sir Edmund Hillary and Tenzing Norgay had taken in 1953, and six sherpa guides assisted the team for the full span of the expedition. On 4 May, the team was camping at when an avalanche struck their camp. Tabei and four of her fellow climbers were buried under the snow. Tabei lost consciousness until sherpa guides dug her out. Luckily, there were no casualties. Bruised and injured by the incident, Tabei could barely walk and was forced to spend two days recovering. As soon as she was able, however, she resumed the expedition and continued leading her team up the mountain.