Which of the following systems of trade was most widely used in ancient river civilizations? (1 point) a
bartering

b
the exchange of coined money

c
free exchange

d
International trade

This chart shows the number of soldiers killed according to two different sources. source a is a book written by university professors. source b is from a well-known historical website. in a paragraph, explain why the data presented is different, and evaluate the reliability of each source. which should be used in a school research project, and why?

What where 3 negative things about the georgia state flag

Which of the following items would serve as a primary source for a historian studiying the american civil war