Wikipedia is a big book online. Many people write it together. It has facts about everything. You can learn new things there. It helps everyone in the world. It is very fun to read. Do you like to learn?
Wikipedia is a huge book online.
Many people help write it. These people are volunteers. They work together to share facts. 
It started a long time ago. Two men started it in 2001. Now, it is in many ways to talk.
It is a very big site. It has many articles. People visit it every single day.
You can learn about almost anything there.
Wikipedia is a massive online encyclopedia. It is written by volunteers. These people are called Wikipedians. They work together to share facts. Jimmy Wales and Larry Sanger started it in 2001.
Wikipedia is the largest reference work in history. It exists in over 340 languages. The English version is the largest. It has over one million articles.
How does it work? People use special software called MediaWiki to edit pages. 
Wikipedia has reached many milestones. An asteroid was named Wikipedia in 2013. In 2019, a copy of the English site went to the Moon. It was engraved on thin metal plates. This was part of a lunar lander mission. Scientists even turned the text into DNA. This shows how much information is there.
Wikipedia is a massive online encyclopedia that anyone can help build. It is a huge collection of facts shared with the whole world. The goal is to make all human knowledge available to every person. It is the largest reference work in history. Many people visit the site every single day. It is one of the most visited websites on the planet. 
How does such a giant project work? It uses special software called MediaWiki to let people collaborate. 
The story of Wikipedia began with a different project. 
Wikipedia has grown into something truly enormous over the years.
Many amazing things have happened because of this project.
Wikipedia is a free, online encyclopedia built through open collaboration. It is maintained by a massive community of volunteers known as Wikipedians. These volunteers use a specific type of software called MediaWiki to edit content. The primary mission of the project is to make the sum of all human knowledge available to every person in the world. This goal makes Wikipedia the largest and most-read reference work in human history. It is one of the most visited websites on the planet, serving as a global repository for information.
The mechanism of Wikipedia relies on a collaborative process. Instead of a single author, many people contribute to a single page. 
Wikipedia is not just one single website, but a collection of many different language editions.
The history of Wikipedia began with a project called Nupedia. 
As Wikipedia grew, it reached several major milestones. In 2007, the English Wikipedia passed 2 million articles. This made it larger than the Yongle Encyclopedia, which had held the record since 1408. By 2009, the English version reached 3 million articles. The site's popularity also grew rapidly. In 2007, it became one of the ten most popular websites in the United States. By 2014, it was receiving 8 billion page views every month. These numbers show how the project transformed from a small experiment into a global necessity.
Despite its success, Wikipedia has faced various challenges and criticisms. Some national governments have censored the site or specific pages. Others have criticized the encyclopedia for systemic biases. These include a gender bias against women and a geographical bias against the Global South. There have also been debates about the number of active editors. Some researchers noted a decline in editors or page views during certain years. Some experts suggested that search engine features, like Google's Knowledge Graphs, might have reduced the need for users to click through to Wikipedia.
Wikipedia is also part of a larger ecosystem of "sister projects" managed by the Wikimedia Foundation. 
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What is Nepedia?
A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.