The transfer of power from one emperor to the next was often unpredictable. Often the army chose the next emperor. These are examples of:

When the army had to choose the emperor, this often happened because of political instability, social corruption, discredit in the Roman institutions, and weakness in the frontiers. These problems began to be common in the final years of the Roman Empire between the 3rd and 4th centuries C.E.

Explanation:

answer; i believe the correct answer is (the willamete valley);

cultural achievements of the 1920's 2010  

1. cultural achievements and african american achievements in the 1920’s  

2. art and literature charles lindberg flew from ny to paris, france. became national hero; first transatlantic flight.  

3. greenwich village (new york) and the south side (chicago)  many artists, writers, and intellectuals flocked to these areas to share ideas  people lead bohemian, or artistic and unconventional, lifestyles