What invention was important in 1991?

In 1991, the World Wide Web was made publicly accessible, which revolutionized how information is shared and consumed. Tim Berners-Lee, a British computer scientist, developed the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server. This invention laid the groundwork for the internet as we know it today, fostering the growth of online communication, commerce, and social interaction. The web's introduction marked a significant turning point in technology and society.