When we read books or lecture notes on geodesy usually there is a chapter on history of geodesy. The history is described way back to a certain period suited the materials organized by respective author. An example taken from one source (may be V & K, 1987) divide the history into four eras as follow; Period from Thales till the end of Roman Empire**. Thales (624 BC to 546 BC) was the founder of science in Ancient Greece – the first scientist in history. Link – https://www.famousscientists.org/thales/ The Middle Ages, the Renaissance and the beginning of the era of rationalism till the mid-eighteen Century (1740-50). Up to the period acceptance of Newton Gravitational Law. Next two hundred years up to WW2 – Einstein theory of gravitation. Last recent developments from WW2 to current. ** The Roman Empire (RE) began when Augustus Caesar (27BCE-14CE) became the first emperor of Rome. RE lasted about 500 years, ended (in the West) when the last Rome emperor, Ramulus Augustulus, was dep...