It's funny, people have days celebrating when an area was united with another area. And they also have days celebrating when an area was separated from another area.
I'm reminded of two neighbors I knew. They lived in one of those streets with all the same type of house erected at the same time. My friends took out the glass panels next to the door and put in wood panels. Their neighbor had done that ages ago, but around this same time, they put glass panels back in again. Both parties regarded it as a nice step forward!
(Thanks to Martin for the story, it was his parents.)