Olayinka Herbert Samuel Heelas Badmus Macaulay (14 November 1864 – 7 May 1946) was a Nigerian nationalist, politician, surveyor, engineer, architect, journalist, and musician and is considered by many Nigerians as the founder of Nigerian nationalism.
Harriet Tubman played the leader role in the abolitionist movement. She was a runaway slave and she helped around 300 runaway slaves get their freedom through the Underground Railroad.
was a decision by the Supreme Court of the United States that invalidated regulations of the poultry industry according to the non-delegation doctrine and as an invalid use of Congress' power under the commerce clause.
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source
https://en.wikipedia.org/wiki/A.L.A._Schechter_Poultry_Corp._v._United_States
The answer would be archaeologist. An archaeologist is a person who studies human history and prehistory through the excavation of sites and the analysis of artifacts and other physical remains.
On the other hand, an anthropologist would take a broad approach to understanding the many different aspects of the human experience, which we call holism. They consider the past, through archaeology, to see how human groups lived hundreds or thousands of years ago and what was important to them.