What effect did the growth of railroads and western expansion have on american indians

How did the constitutional convention deal with slavery , one the most divisive issues of the period

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

What country was the philippines declaring independence from in this proclamation?