Disco Demolition Night was a baseball promotion on Thursday , July 12 , 1979 , at Comiskey Park in Chicago , Illinois that ended Process_end in a riot Violence .

Disco Demolition Night preceded Process_start , and may have helped Assistance precipitate Motion , the decline Cause_change_of_position_on_a_scale of disco in late 1979 ; some scholars and disco artists have described Statement the event as expressive of racism and homophobia .

Disco Demolition Night remains Temporary_stay well known Know as one of the most extreme promotions in Major League history .