I am thinking either the Battle of Saratoga or the Seige of Yorktown. I think the Siege/Battle of Yorktown because that was the last and decisive battle that ensured American Independence
The first one is Appellate, and the second one is the 14th amendment.
It would be a "proportional" tax rate system that uses the same rate for all income levels, although in most western countries this is not used. Instead a "progressive" tax structure is used.
The correct answer to this open question is the following.
Unfortunately, you forgot to attach the text. Without the text, we do not know what it says and we cannot give any point of view about the text.
You also forgot to include the cartoon.
However, trying to help you with something useful, we can comment on the following, taking into consideration the period of 1890-1910.
Imperialistic views were growing in the United States after the Spanish-American War in which the United States defeated Spain. The result of that victory was that the Island of Cuba got rid of the Spanish presence and the United States gained control of the Philippines, Guam, and Puerto Rico.
It was also a time in which US President Theodore Roosevelt created the "Roosevelt Corollary," in support of the ideas of the Monroe Doctrine, in which the United States made the clear statement that European nations were not welcomed to maintain interventionist actions in Latin America. Another European intervention in the region was going to be interpreted as direct aggression to the United States.