History: In 1880 the British explorer Edward Whymper spent 6 month in 1880 around "the Great Andes of The Equator" in Ecuador summiting (with the Italian brothers Jean-Antoine and Louis Carrel) 9 of the highest peaks as follows: Chimborazo (4 Jan and 3 July - measured as 20.498 feet), Corazon (2 Feb - measured as 15.871 feet), Cotopaxi (18-19 Feb - measured as 19.613), Antisana (10 Mar - measured as 19.335 feet), Pichincha (23 Mar - measured as 15.918 feet), Cayambe (4 Apr - measured as 19.186), Sara-urcu (17 Apr - measured as 15.502 feet), Cotocachi (24 Apr - measured as 16.301 feet) and Carihuairazo (29 Jun - measured as 16.515 feet). Many of these and others had previously been summited by Alexander von Humboldt and H. Bonssingault - most noteably Chinborazo (highest mountain in South America - and mountainpeak farthest of all from the center of the earth due to the equatorial bulge) on 9 Jun 1802 and 16 Dec 1831 respectively.