The document discusses the history and definitions of blogs from their origins in the late 1990s to their use in education today. It traces how blogs started as personal online journals that shared links (late 1990s) and evolved with the introduction of easy-to-use blogging platforms like Blogger in 1999. This allowed non-technical individuals to easily create and maintain blogs. The document also explores educational uses of blogs like having students read and comment on books or share work in math classes. Overall, the document provides context around the origins and evolving definitions and uses of blogs.