<Tr> <Td> </Td> <Td> The examples and perspective in this article may not represent a worldwide view of the subject . You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate . (September 2017) (Learn how and when to remove this template message) </Td> </Tr> <P> The following is a list of mountains that have been presumed, at one time, to be the highest mountain in the world . How general were the following presumptions is unclear . Before the age of exploration, no geographer could make any plausible assumption . </P> <Ul> <Li> Chimborazo, 6,267 metres (20,561 ft). Presumed highest from sixteenth century until the beginning of the 19th century . Not in the top 100 highest mountains when measured from sea level, however due to the earth's equatorial bulge this is the farthest point from the Earth's center . </Li> <Li> Nanda Devi, 7,816 metres (25,643 ft). Presumed highest in the world before Kangchenjunga was sighted in an era when Nepal was still closed to the outside world . Now known to be the 23rd highest mountain in the world . </Li> <Li> Dhaulagiri, 8,167 metres (26,795 ft). Presumed highest from 1808 until 1847 . Now known to be the 7th highest mountain in the world . </Li> <Li> Kangchenjunga, 8,586 metres (28,169 ft). Presumed highest from 1847 until 1852 . Now known to be the 3rd highest mountain in the world . </Li> <Li> Mount Everest, 8,848 metres (29,029 ft). Established as highest in 1852 and officially confirmed in 1856 . </Li> <Li> K2, 8,611 metres (28,251 ft). Discovered in 1856 before Mt . Everest was officially confirmed, K2's elevation became something of an enigma until it was officially resolved at a later date . News media reported in 1986 that satellite measurements by the University of Washington during an expedition to K2 by George Wallenstein had given a height between 29,064 feet (8,859 m) and 29,228 feet (8,909 m). This erroneous figure was quickly retracted, and K2's status as second highest was reaffirmed . </Li> </Ul> <Li> Chimborazo, 6,267 metres (20,561 ft). Presumed highest from sixteenth century until the beginning of the 19th century . Not in the top 100 highest mountains when measured from sea level, however due to the earth's equatorial bulge this is the farthest point from the Earth's center . </Li>

Before mount everest was discovered what was the tallest mountain