Yesterday was supposedly the tenth anniversary of the coining of the word “blog.” These kinds of anniversaries (of terms, practices, social phenomena) make for very easy newspaper copy and very bad history. It’s obviously impossible to date the first time a word was spoken.
But to the extent that these bogus birthdays get history into the papers, I think they’re probably OK. Newspapers and magazines cover events not movements or conventions, and these artificial anniversaries serve to turn complex stories of (often gradual) change over time into something more clearly newsworthy. That’s not necessarily a bad thing, as long as writers use the anniversaries as hooks to draw their editors and readers into a larger narrative and don’t claim too much for the events themselves. Most of the time, I think they do a good job. Once you get past the headlines, you can find a lot of decent history in these happy birthday cards.