Prohibition of alcohol helped Jazz grow because it was often played in speakeasies and at many 1920s parties, it also derives from slavery when slaves sang the blues. This later evolved into the jazz genre or dixieland one genre was called I believe, some iconic Jazz artists include Louis Armstrong and Billie Holiday who was a blues singer
Someone who was writing about the experiences of someone who went thru said thing first hand. like a biography is a second hand source, whereas an auto biography is first hand source
