The price of the product goes up because the demand is high
A presidential candidate promotes a "campaign platform" during the campaign, the goals of which generally transfer the goals into the "presidential agenda".
Never think that the end will be the end.
They lost their main source of food which led to starvation and war among the once harmonious tribes.
One of the most significant contributing factors was their location on the Mediterranean, which made trade far easier, while one of the factors contributing to the fall was their loss of the Peloponnesian War.