As a form of activism street parties are festive and/or artistic efforts to reclaim roadways as public space by large groups of people.
[citation needed] In the UK, street parties are mainly known as private residents' events without wider neighbourhood publicity and have a festive cultural meaning, especially in England and southern Wales.
The tradition seems to have begun in the United Kingdom after World War I as residents' organised "peace teas" to celebrate the signing of the Treaty of Versailles in 1919.
[1] The tradition was boosted for the wedding of Prince William and Kate Middleton in April 2011 with about 1 million people joining in street parties.
Block parties were usually outside on the street, and the DJs powered their sound systems using streetlights, as referenced in the song "South Bronx" by KRS-One.