First of all, who knew Idris Elba (aka The Wire‘s “Stringer Bell”) was a fan of dance music? Second of all, who knew he had an English accent? Okay, the details: Last year, the native Londoner, along with the BBC, assembled a solid documentary on the history of clubbing—basically a top-20 countdown of the most significant events in dance music’s legacy. Whether it’s Orbital playing at Glastonbury in 1994, Paul Oakenfold making his first trip to Ibiza, or Tony Wilson bringing the New York mega-club vibe to Manchester, How Clubbing Changed the World takes a suitably long and exploratory view of the steps that got clubbing to where it is today—the largest youth culture explosion since hip-hop.

Can you guess what the most important event was? Have a watch below and find out.