English Wikipedia has a category on:
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Newest and oldest pages 
Newest pages ordered by last category link update:
  1. Japono
  2. Armenia
  3. Gruzia
  4. Slovakia
  5. Rumania
  6. Chekia
  7. Suisia
  8. Nederlando
  9. Germania
  10. Liechtenstein
Oldest pages ordered by last edit:
  1. Malta
  2. Slovakia
  3. Portugal
  4. Azerbaijan
  5. Slovenia
  6. Armenia
  7. Moldova
  8. Liechtenstein
  9. Estonia
  10. Australia

Ido names of countries.

NOTE: This is a name category. It should contain names of specific countries, not merely terms related to countries, and should also not contain general terms for types of countries.