On a far more interesting note.   Been an interest of mine for all my life.   Theres been a program on channel 5 recently that started to come close ..... and season 18s opening episode of Time Team which is just being rerun on one of the channels starts to give a more accurate perspective of the time period ...   I believe I have known for ages where  ...   Its all as Plato says, apart from a slightly misleading reference to its size.