In the early 19th century, the flattening of the earth ellipsoid was determined to be of the order of 1/300 (Delambre, Everest), the modern value as determined by the US DoD World Geodetic System since the 1960s is close to 1/298.25.
The flattening of the earth ellipsoid was determined to be of the order of 1/300 (Delambre) by the US DoD World Geodetic System. This was in the early 19th century. The 1960s is close to 1/298.25. Delambre was Everest.1/300 (Delambre) was the modern value as determined. Delambre was Everest.