Based on Passage 1, slavery was the reason why socio-economic progress for African Americans has been slow.
During the 17th and 18th centuries, slavery was rampant throughout American colonies. Through the manufacture of lucrative crops like cotton and tobacco, the African slaves helped establish the new nation into a powerhouse of economy.
African Americans climbed into the upper middle class in large numbers during the 1980s.
When the germans invaded france, the french underestimated the german blitzkreig through their ardennes forest and left it undefended because they thought an army couldnt pass through