PLZ HELP Decode the map to identify three factors that influenced the expansion of the railway line in the second half of the 19th century. Which factor is the most fundamental?

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.

the

1. darius the great     persia  

2. piankhi       nubia

3. ezana       aksum

4.     nebuchadnezzar     babylonia

5. shalmaneser iii     assyria