Knowledge: Rock and roll spread in early 1950s while jazz gained popularity world wide around 1920s in fast speed.

Conversation:
Am in love with jazz
Neat, when it spread around the world, it gave rise to a lot of distinctive styles through drawing upon local, regional, and national musical cultures.
Oh wow! Did jazz spread like rock and roll and when?

Response: Heck yes! Jazz gained popularity world wide around 1920s in fast speed.