Those are called a theocracy.
The correct answer is conventions.
Every four years, members of the Democratic and Republican parties meet at conventions to announce who their candidates will be for president and vice president. The selection of these candidates are based on the results of the primaries and caucuses held during the winter months. Then, in the summer, the parties meet at their respective conventions to announce their nominees.
Someone answered this question already before
Items.
But if we're being serious, there are a lot of barges to talk about so you'll need to be more specific.
Answer:
As the Athenian empire expanded and trade grew, Greek knowledge spread.
Explanation:
