Jazz has been an evolving form of music from it's creation. You could say that it became popular in the 20's with the ragtime/dixieland trends, followed by swing in the 30's, bebop in the 40's, etc.
African American
Luis Armstrong Luis Armstrong
no
Jazz was popular in the 1920's.
The Popular Duke Ellington was created in 1967.
I would consider the key features to be that Jazz really got started and became popular during prohibition and then in the 30's, Big Band music took Jazz to an upbeat and swing style that was great to dance to. Glen Miller was one of the great Big Band leaders of that time
Popular 1920's DanceThe Foxtrot became popular in the 1920s.
foxtrot
the auto mobile quickly became popular followed by radios and other technology
The Waltz
The length of hair has always fluctuated throughout history. For women short hair first became popular during the 1920s, with the introduction of the bob. The bob again become popular during the 1960s.
flappers
Hollywood
The Charleston was a popular fast dance during the 1920s.
holly wood
A few of the most popular songs in the 1920s was Sonny Boy, See See Rider Blues, and King Porter Stomp. The most popular type of music during the 1920s was jazz.
the radio
The moustache became popular during the 1920s as a response by working-class men to the flamboyant, flowing Kaiser-style moustaches of the upper classes.