Disco emerged in the late 1960s and grew rapidly popular through the 1970s, with over 15,000 discos opening across the US. Disco nights brought together diverse groups on the dance floor to dance freely to percussive music. However, disco faced a backlash from social conservatives and was further damaged by its association with marginalized groups like the gay community as the AIDS crisis unfolded. While commercially successful, disco's inclusive culture challenged social norms and it was eventually replaced by new musical styles.