Briefly explain how ONE specific historical event or development in the period 1919–1930 that is not explicitly mentioned in the excerpts could be used to support Leuchtenburg’s interpretation.

the answer is "by providing data about careers and annual mean wages"

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.

created after the great insurrection of 10 august 1792, it was the first french government organized as a republic, abandoning the monarchy altogether. the convention sat as a single-chamber assembly from 20 september 1792 to 26 october 1795 (4 brumaire iv under the convention's adopted calendar). hope this : )