on-this-day
Aiguille de Bionnassay: first ascent
Aiguille du Grépon: first ascent
Aconcagua: first ascent
Aiguille des Grands Charmoz: first winter ascent
Adamello: first ascent
Nasce Julius von Payer
Zinalrothorn: first ascent
Zugspitze: first ascent
On 20 August 1820, Joseph Naus reached the summit of the Zugspitze for the first time; at 2,962 metres, it is the highest peak in Germany.
Allalinhorn: first ascent
Aiguille Blanche de Peuterey: first ascent
