What were "stations" on the Underground Railroad? A. Places where escaped slaves could safely stop
B. Checkpoints at which escaping African Americans had to show
identification
C. Dangerous plantations from which slaves escaped north
O D. Cities in Canada to which slaves escaped
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How did german physicist werner heisenberg's uncertainty principle shake beliefs in newtonian physics?

How did modern american history begin with “contact”?

Match the people with the appropriate description. vernon and irene castle arthur murray fred astaire willi ninja a. stylized the forms of ballroom dance by incorporating other dance forms b. responsible for renewing the influence of ballroom dance in america c. godfather of vogue danced. responsible for standardization/teaching of steps leading to spread of ballroom dance education