Answer: 541 years
Explanation:
AD refers to after the birth of Jesus, while BC refers to before he was born.
The Gutenberg press was the printing machine invented by Johannes Gutenberg in 1450.
The World Wide Web (WWW) was invented by Tim Berners-Lee in 1989 as a tool for scientists to share information from universities and institutes from all over the world, but by 1991 it became publicly available on the Internet as the first website, with information about the World Wide Web project.
