Foreign Ministers of Nepal and China jointly certified the elevation of Mount Everest at 8,848.86 metres above sea level — 86 cm higher than what was recognised since 1954
The common declaration meant that the two countries have shed their long-standing difference in opinion about the mountain’s height.
No other mountain has perhaps been the subject of as much debate.
The elevation of 8,848 m came to be accepted in all references worldwide which was determined by the Survey of India in 1954,— except by China.
Instruments like theodolites and chains were used, with GPS still decades away