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A block party or street party is a party in which many members of a single community congregate, either to observe an event of some importance or simply for mutual solidarity and enjoyment. The name comes from the form of the party, which often involves closing an entire city block to vehicle traffic or just a single street. Many times, there will be a celebration in the form of playing music, games, dance and activities with food such as popcorn machines and barbecues. When multiple streets become cordoned off, those are referred to as street fairs.
As a form of activism street parties are festive and/or artistic efforts to reclaim roadways as public space by large groups of people. They were made known in Western Europe and North America by the actions of Reclaim the Streets,[citation needed] a widespread "dis-organization" dedicated to reclaiming public space from automobiles and consumerism.