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A primary source is one that is written by someone who experienced the event firsthand. Anne Frank's diary is an example of a primary source. She was the first (primary) person who experienced what happened on that hierarchy.
A secondary source is one that is written about a primary source. It comes second on the hierarchy of receiving historical information because it has to be based on a primary source, which gives the actual information. A history documentary is an example of a secondary source.
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She was Henry VIII's first daughter. She married King Philip of Spain even though the people of England were against the marriage.
The mediate cause for World War 1 the assassination of Archduke Franz Ferdinand and his pregnant wife Sophie. However there were many other causes of WW1. WW2 started because hitler didn’t like Jewish people so he built an army to destroy all Jewish people wich then started the war.
Federalism in the idea of the power being shared between the national and state level. checks and balances to keep the government from becoming tyrannical.