1-C. Such difficulties were overcome by a party led by Maurice Herzog and Louis Lachenal of France, and these men became the first to successfully climb an 8000er, Annapurna in Nepal, in 1950.Such difficulties were overcome by a party led by Maurice Herzog and Louis Lachenal of France, and these men became the first to successfully climb an 8000er, Annapurna in Nepal, in 1950.