I think you mean Sherpas instead of Shepards. Sherpas moved closer to Mount Everest to get work. Every climbing season hundreds of Sherpas are paid to carry loads on Mount Everest or fix routes etc. They can earn more in 1 month on Mount Everest than what they get by farming the rest of the year.
400 000 dollars a day
Sherpas who were born near the Himalayan Mountains are use to the cold. They keep warm by wearing extra clothing, much of which is mountain clothing left to them after expeditions they have worked on.
Mount Everest is important to the Sherpas for 2 main reasons: 1: Because of the height of the mountain it is closer to there gods. 2: Climbers from all over the world bring much needed money into the region when they come to climb Mount Everest.
Today climbers and sherpas can earn extra money by bring down any of their rubbish from the slopes of Mount Everest.
They are called 'Sherpas'. They can guide climbers up the mountain and keep the route safe and open.
I do not think any Sherpas died, but five climbers/guides did.
He payed back the Sherpas by building them a school. (He payed them back because the Sherpas helped him while climbing mount Everest)
The role that the Sherpas had on the 1953 Mount Everest expedition is the same as they still do now. They carry gear/equipment, make camps up the mountain. They break trail by making routes. Some cook and look after other climbers. Sherpas are very much part of an expedition.
Sherpas are people who guide other up mountains. So, typically in the mountains of Nepal, the Himalayas, etc.
Tibet
From the tap