Who wrote a book on geography? euclid eratosthenes archimedes pythagoras

It was Eratosthenes  wrote a book on geography

Several astronomers and mathematicians before and after Eratosthenes tried to accurately measure the circumference of the Earth, but it was Eratosthenes that came through. He found the circumference of the Earth.

Eratosthenes also contributed to geographic source of the river.

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.

a reason that was key to coolidge's victory in the 1924 presidental election was that; democratic party supporters were split in the north and south.