What if hundreds of people united, each taking one small action to improve their city, all on the same day?

100In1day is a global festival of civic engagement and a growing movement that is changing how people interact with their cities.  The festival is a platform for citizens to activate ideas to make their city healthier, happier and more connected, one initiative at a time.

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we organized the only edition in Switzerland, in Paquis district in Geneva (04/10/2014).