The Matterhorn & Edward Whymper

The stamps on this FDC depicting the Matterhorn were issued to commemorate the Centenary of the successful climb of the Peak by Edward Whymper. My friend Maria gave me this cover.And it was issued on 1.6.1965.
The Matterhorn (German), Monte Cervino (Italian) or Mont Cervin (French), is a mountain in the Pennine Alps on the border between Switzerland and Italy. Its summit is 4,478 metres (14,690 ft) high, making it one of the highest peaks in the Alps. The four steep faces, rising above the surrounding glaciers, face the four compass points. The mountain overlooks the town of Zermatt in the canton of Valais to the north-east and Breuil-Cervinia in the Aosta Valley to the south. The Theodul Pass, located at the eastern base of the peak, is the lowest passage between its north and south side. The Matterhorn was one of the last great Alpine peaks to be climbed and its first ascent marked the end of the golden age of alpinism. It was made in 1865 by a party led by Edward Whymper and ended disastrously when four of its members fell to their deaths on the descent. The north face was not climbed until 1931, and is amongst the six great north faces of the Alps. The Matterhorn is one of the deadliest peaks in the Alps: from 1865 – when it was first climbed – to 1995, 500 alpinists died on it.
Who was Edward Whymper and What was the controversy about his attempt on the Matterhorn? Edward Whymper (27 April 1840 – 16 September 1911), was an English illustrator, climber and explorer best known for the first ascent of the Matterhorn in 1865. On the descent four members of the party were killed. In 1865 Whymper’s party of four was joined by Hudson and Croz, and the inexperienced Douglas Hadow. Their attempt by what is now the normal route, the Hörnli ridge, met with success on 14 July 1865, only days before an Italian party. On the descent, Hadow slipped and fell onto Croz, dislodging him and dragging Douglas and Hudson to their deaths; the rope parted, saving the other three. A controversy ensued as to whether the rope had actually been cut, but a formal investigation could not find any proof. The account of his attempts on the Matterhorn occupies the greater part of his book, Scrambles amongst the Alps (1871), in which the illustrations are engraved by Whymper himself. The accident haunted Whymper:

"Every night, do you understand, I see my comrades of the Matterhorn slipping on their backs, their arms outstretched, one after the other, in perfect order at equal distances—Croz the guide, first, then Hadow, then Hudson, and lastly Douglas. Yes, I shall always see them…"