Activism is action to bring about change in society. It can be trying to make a government change its laws, or trying to make people change what they do. There are many forms of activism. Activism is most associated with protests. More recently internet activism has become popular. When activism is linked to art, the action, in street art is called artivism. Chinese artist and activist Ai Weiwei is a typical example.
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Activism Facts for Kids. Kiddle Encyclopedia.