"See all upcoming events" shows you events in 2008
Go to the frontpage of the blog, and then click on "see all upcoming events" on the right column. You end up at https://blog.torproject.org/events/upcoming which starts off telling me about a January 24, 2008 event.
There is a subtle link called "See the events calendar" which brings us to https://blog.torproject.org/events/month which I think is the calendar we are hoping to see after the first click.