On September 1st, 1939 Germany invaded Poland. 
 
        
             
        
        
        
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 successful surprise attack on the Egyptian relief army ensured the Crusaders' occupation of Palestine
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The Pennsylvania Railroad, Bridge construction
 steel,stel,steal,stele,stel,stiel
He invested in new technology.
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She was a women's suffrage activist. She also had an anti-lynching campaign and worked against segregation. She first began by challenging the exclusion of black people from the Chicago World's Fair
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The description is summarized in the clarification section follows, as per the particular circumstance.
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- "Rock and roll" represents a form of modern music rooted throughout the U.S. throughout the 1950s, however according to columnist Greg Kot. Rock music eventually evolved into another all of which included foreign relevant content as rock music either by 1960s, while the latter still appeared to be recognized as rock'n'roll.' 
- Throughout the early rock music types, the leading player was usually whether another piano as well as saxophone. Throughout the medium the to late 1950s, certain instruments have been commonly replaced or augmented by guitar. The beat seems to be simply a dance pattern with an augmented rhythm section, which will often be produced by a drum machine. 
- Lifestyles, styling, personalities, including vocabulary, had a polarizing presence on rock and roll. It is often represented in film, fan magazines, as well as so on TV. This might just have connected to the campaign for civil liberties because although the genre was enjoyed upon between African Americans including Mexican American adolescents.