In 2001, Jimmy Wales created the first entry on Wikipedia. 20 years later, the website has permeated all areas of our everyday lives. It has over 500 million articles and is the largest encyclopaedia of all time.
Wikipedia begins with a promise: knowledge production, which for millennia was in the hands of elites, is radically democratised: anyone can write in, regardless of education level or background. But is the online project utopia come true?