The main idea in Madison's federalist paper #51 is that checks and balances can and should be put in place in a federal government in order to keep any single branch from becoming too powerful.
Feudalism is a system run by multiple nobles who look over provinces they rule under the kings authority. Democracy is a system in which government officials are elected by the people, or a group to run the nation until reelection or death.
It upset the balance of free and slave states in the US.
The cold weather and winter
Egyptian nationalization of the Suez Canal during the Suez Crisis meant that "The Egyptian government took control of the canal" specifically from Great Britain.
