To be president, you have to at least be 35 years old.<span />
the rise of political parties
Parliament is pretty much England's government, consisting of the sovereign (Queen), house of lords and house of commons
Rivers, mountain ranges, historical points (railway, a wall, etc.)
Most country borders are divided by geographical points, and sometime just for political and historical reasons (what belonged, and waht should belong to whom).
Hope it helped,
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