| Name | Country | 14C dates | |
|---|---|---|---|
|
1-20 / 936 show all | |||
| Aargau | Switzerland | 14 | Show |
| Aberdeen | United Kingdom | 6 | Show |
| Aberdeenshire | United Kingdom | 92 | Show |
| Abkhazia | Georgia | 1 | Show |
| Adygey | Russia | 1 | Show |
| Agrigento | Italy | 5 | Show |
| Ağstafa | Azerbaijan | 1 | Show |
| Ahal | Turkmenistan | 24 | Show |
| Ain | France | 96 | Show |
| Aisne | France | 104 | Show |
| Ajlun | Jordan | 1 | Show |
| Akershus | Norway | 2 | Show |
| Aksaray | Turkey | 56 | Show |
| Al-Anbar | Iraq | 1 | Show |
| Alba | Romania | 14 | Show |
| Albacete | Spain | 34 | Show |
| Al Buhayrah | Egypt | 7 | Show |
| Aleppo | Syria | 3 | Show |
| Al Fayyum | Egypt | 6 | Show |
| Alicante | Spain | 29 | Show |
