What caused crop failure during the Reconstruction Era?

Why caused john quincy adams to write the monroe doctrine?

Why have some historians rejected the labels bc and ad as laels for periods in world history

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