Why was Persia defeated? How many Persians died?

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.

In 1819, what did the united states obtain from spain for $5 million?

What kind of contact did christopher columbus and native americans initially have?