What year did the United states and Panama sign the treaty to build the panama canal?

Select the correct answer from each drop-down menu. different sources are aimed at different audiences. sometimes a source can be directed at more than a single group of usually aimed at the general population across the globe. some sources may have a very specific audience. be specifically aimed at students or scholars with a background in literature.

Which country was an ally of the united states during world war ii? germany china japan italy

How did mesopotamia become a center of trade