HOPLOLOGY is the study of weapons and armor.

DIRECT EVIDENCE supports the truth of an assertion directly.

CIRCUMSTANTIAL EVIDENCE is also known as INDIRECT EVIDENCE. 

It is evidence in which an inference is required to connect it to a conclusion of fact. It usually accumulates into a collection so that the pieces then become CORROBORATING EVIDENCE.

OLD WORLD includes the time period of Lehi and his family in Jerusalem and their travels to the New World. 

In addition, it includes the time period of the Jaredites with their unknown origin and their travels to the New World.

NEW WORLD is the Western Hemisphere, the Americas.