i hope this correct answer
#studylearningonly
The answer is deflation because it reduces everything thing that uses money value to things that are good enough for trade.
The most useful is documentary evidence. Things people have written. Old newspapers, personal accounts, even things like letters, bank records, govt. records, etc. For fairly recent history there are photographs and even films and videos.
But even writing only goes back about 6000 years. Before that there is archaeological evidence. From studying the debris of ancient civilizations historians can determine what their buildings looked like, what they ate, who they traded with, what they thought was
it was created by the farmers of the U.S. Constitution as an alternative to elect the president by popular vote or by Congress, or, by the people.
