What had to happen in order for towns to develop during the Middle Ages?

According to jean-jaquees rousseau, individuals participating in a social contact agree to be ruled by

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.

Select all the correct answers. what were two effects of the french revolution in france?