The English Wikipedia has reached 5,000,000 articles with
Persoonia terminalis (a type of shrub),
created by Australian contributor Cas Liber on 1 November 2015 at 12:27 UTC.
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Wikipedia was founded in 2001 as a project to build an online, free-access, free-content encyclopedia entirely from scratch. Since then, it has grown to be the largest encyclopedia ever created, comprising more than five million articles in English, while still relying on the contributions of volunteers. The English Wikipedia community thanks the millions of users whose edits over the past fourteen-plus years have made this remarkable accomplishment possible.