Babylon, Perseoplis, and Susa.
Hope this helps!
-Flamepool
I do not have your choices of "the following" Here are some reasons I learned: Christianity, empire was too big and became hard to manage, there were many nonromans attacking parts of empire- Goths, the emperors themselves were weak or insane intrigue was rampant.
The quote gives the people the right to abolish the government as soon as it become destructive to the country and/or its citizens.
I think it is Gilbert Maxent a well connect merchant from New Orleans.
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. In June 1914, a Serbian-nationalist terrorist group called the Black Hand sent groups to assassinate the Archduke.