stable civilizations most of the time don't need to worry about things like poverty, or sickness. those are things unstable civilizations do need to worry about. When a civilization is stable, they have more time on their hands to create innovations and work. Meanwhile unstable civilizations will need to be worrying about all the things they need to fix.
Public sentiment in the United States grew increasingly in favor of Cuban independence for the following two reasons: "U. S. gained power in the Caribbean" and "<span> U.S. newspaper stories on Spanish injustices"</span>