Tim Berners-Lee invented the World Wide Web in 1990 to allow easy sharing of information between researchers. He created HTML, the language for structuring and presenting content on webpages, and browsers which could view these pages. However, directly editing raw HTML was difficult. Later, HTML editors and content management systems (CMS) like WordPress were created that allowed non-technical users to easily edit and manage website content through a graphical interface, popularizing the creation and maintenance of websites.