By world war i, record players were commonplace and the recording industry enjoyed a boom period that lasted until: a. radio gained popularity b. the jazz age c. the great depression d. word war i i e. the mid 1960's.

After early colonial losses to the british in new york, a.general washington withdrew his troops to pennsylvania. b.the colonies ratified the declaration of independence. c.the continental army set up headquarters at fort lee. d.general washington set up headquarters in new jersey.