User:Beetstra/Wikipedia ad absurdum

Establishments and disestablishments by country and by year
I think that everybody agrees, that the Empire State Building, the White house, .. are buildings established in the U.S. And that will go for most of the structures that are visible in current day U.S.  It is then a sensible thing to create a Category:Establishments in the United States to group those all together. But likely, that category will grow impossibly big, making it useless. For the U.S., it is then easy to consider to split these by year. Category:2012 establishments in the United States, Category:2011 establishments in the United States.

Now, in Europe, there is not much dispute that the Eiffel Tower is established in France, and the Tower Bridge in England. At first, it is obvious that these are categorised to Category:Establishments in France and Category:Establishments in England, but also for these big European countries, these categories grow bigger, and there it makes sense to split these categories up by year.

By now, a 'larger scheme' has been born. It is born out of practicality, not necessarily because it is a good way of categorisation ...

Europe, China, Africa, the Middle East (and others) are typical area's where countries are not defined indefinitely. Italy in its current form only exists for less than a century, many current countries were part of the Roman Empire, the area known as the 'low lands' (Netherlands) has encompassed (parts of) Belgium, Luxembourg and France. And some countries only exist since really short in their current form (Czech Republic & Slovenia or Czechoslovakia - or was Slovania part of Hungary.

So,
 * is the Börringe Priory and (dis)establishment in Sweden or Denmark?
 * is Prague Castle an establishment in the Czech Republic, in Czechoslovakia (it was the seat of the Czechoslovak Republic, in Bohemia ...)?