Why were people so concerned about how to address the present

In one to two paragraphs, compare and contrast the american, french, and mexican revolution.

Which groups united to form the populist party

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