History It is important because it is what happens in the past and it is important to know what happens,like the question how did the trading post get here? That is history and history answers that question.
Religion It is important because it is how they express theirselves and their love for what they believe in like Christianity they express their love for god.
Government It is important because that is how your country is run. Like republic a president, parliament, prim minister, and cabinet runs their country.