What is the time period for book Slam?

Slam is a poetry performance art that blends elements of spoken word, storytelling, and theater, often with a competitive element. It is a recent phenomenon, believed to have originated in Chicago, Illinois, in 1984, when poet Marc Smith began hosting a weekly poetry reading at the Get Me High Lounge, which evolved into a competitive format known as the "slam." Since then, poetry slam has spread to other cities and countries and is now a recognized art form with regular competitions, festivals, and tours.