Thanks (especially for the shared memory). Also thanks on affirming lots of media coverage.
I looked at Wikipedia already, but it really didn't tell me what I most wanted to know - how expected or unexpected was this event to the general public (of various countries) and how expected or unexpected was it to the various governments.
I thought it might be less unexpected, because there were (according to wiki and other things I Googled) lots of changes until that point (changing government policy, Austria and Hungary's easing border, etc), but that's still me drawing a conclusion.