Wikipedia had its origins at Nupedia. Nupedia was an attempt to make a free content encyclopedia with articles written only by experts. Wikipedia started as an experimental use of wiki technology at a website where "anyone could edit" the encyclopedia articles. Wikipedia soon grew rapidly while the conventional Nupedia approach to article creation remained painfully slow. Within a short period of time, the original Nupedia process for article creation by experts was abandoned. Wikipedia is now one of the most frequently visited websites in the world and it has millions of articles. Since Wikipedia is only for the creation of encyclopedia articles, some members of the community decided to create additional wikis for other types of content such as textbooks (see Wikibooks, below).