Ireland, due to the potato famine.
The danger and difficulty in escaping from slavery are hard to imagine. Most slaves were illiterate and had no money and few, if any, possessions. The colour of their skin made them easy targets during the daylight for those who would hunt them down—often with the help of bloodhounds—and return them to their owners.
The answer is true. This because the colonies wanted to separate to become independent.
It declined over time. The kingdoms had fought each other and an earthquake had ended up by destroying all of their palaces and fortresses.