Who did not help establish that the Earth was round and not flat? A. Harding B. Coolidge C. Hoover

During world war ii who is the commander-in-chief of the pacific fleet

The belief that war often drives civil modifications to a society is based upon the evidence that in times of external conflict, a society is forced to abandon long held discriminatory values to:

What deadly disease cost many workers their lives before dr. william gorgas found a treatment?