It is false that primary sources are the only sources that historians use, since it is important to consult the works of other writers and historians to get an idea of how events in history have played out. Historians usually use a combination of secondary and primary sources.
Newton was 24 when he discovered calculus.
B) she was paid for her work
Hope this helps :)
D. Ellis Arnall
Ellis Arnall<span>was elected governor of Georgia in 1942; gave 18 year old citizens the right to vote</span>