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  First USA's constitution
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  George Washinton is named the First President of the United States of America
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  New York is named the new country's capital
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  Philadelphia is named the new country's capital
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  Washington is founded and named the new country's capital
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  Abraham Lincoln is the new USA's president. Abolition of the slavery. Differences between the south and the north, because the south is not partial of abolishing the slavery.
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  Massacre of Wounded Knee. Last big conflict between Indians and white people.
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  Japan attacks Pearl Harbour. The USA enters the Second World War.
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  The USA bombards Hiroshima and Nagasaki
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  Murder in Dallas of J. F Kennedy
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  Two planes smash against the twin towers. More than 4000 dead people. Al Quaeda claims the offense.