The beginnings: Paviland, Tinkinswood and Llyn Cerrig Bach
Wales and Rome: Caer-went, Whitton and Segontium
400-800: Dinas Powys, Catraeth and Llantwit Major
800-1282: Aberffraw, Dinefwr and Mathrafal
1282-1530: Rhuddlan, Sycharth and Penmynydd
1530-1770: Ludlow, Gwydir and Llangeitho
1770-1850: Holywell, Dowlais and Llanover
1850-1914: The Rhondda, Anerystwyth and Bethesda
1914-39: The Somme, Brynmawr and Penyberth
Wales since 1939: Cardiff, Margam and Tryweryn.