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  First English settlers in Jamestown, Virginia
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  The Pilgrim hop to find religious freedom
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  This date is declaration of independence in USA
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  This first president of USA
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  Eleven Southern states refused to abolish slavery
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  The president Abraham Lincoln's assasination
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  The stock market crashed and 10 million Americans lost their jobs
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  President Franklin D. Roosevelt created the slogan "A new deal for the American people"
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  After the Japanese attack on Pearl Harbour the US entered in WWII
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  The US dropped two atomic bombs on the Japanese cities of Hiroshima and Nagasaki
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  Vast demonstrations against the war in Vietnam and against racial segregation
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  President J.F. Kennedy's assasination
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  On september 11th 2001 two hijacked planes crashed into the Twin Towers in World Trade Center in New York City