I believe the answer is <span>Ethan Allen and Benedict Arnold. Hope this helps.
</span>
Explanation:
Slavery in ancient Rome played an important role in society and the economy. Besides manual labor, slaves performed many domestic services, and might be employed at highly skilled jobs and professions. Accountants and physicians were often slaves. Slaves of Greek origin in particular might be highly educated.
en.m.wikipedia.org › wiki › Slavery...
Slavery in ancient Rome - Wikipedia
The major reason for the U.S. Senate's failure to ratify the Treaty of Versailles is they objected to the League of Nations, fearing that it would supersede U.S. authority.
<u>Explanation</u>:
<u>"Treaty of Versailles" </u>was signed on 28th June 1919 between Germany and Allied powers to end the war. Treaty of Versailles is the most important agreement that brought World War 1 to end.
Treaty of Versailles failed, as the Allies disagreed to better treat Germany and on the other hand Germany refused to accept the terms of reparations.
U.S. Senate thought that League of Nations would supersede U.S. authority. This led to failure in ratifying Treaty of Versailles.
The civil rights activist who wrote that essay was Henry David Thoreau, famous transcendentalist writer who opposed his government and its behavior towards other nations, classes, races, etc.