The reason so much has dissapeared is because of erosion for one because you have to think these are really old Buildings and erosion gets to them. They fall down only to be covered by soil,rocks,or roads and cities. The most plausible reason is erosion and being covered by buildings and roads ect.
Because santa didnt like it so humans could have it
Because the goverment are out for themselves, and don't care about Britain.
Because they were in control of the London Mafia
Ireland was first settled around 10,000 BC. It is thought that the landbridge with Britain has disappeared by that stage so the first settlers would have arrived in Ireland by sea.
The medieval period ended a while ago, and all the goldsmiths from that period are dead, so they don't get paid at all.
Very simple the water was bad.
Yes. Very much so.
Definately more simplistic but so much harder.
Bats do not play a big part in the animal world, so nothing much.
Yes very much so
There were quite a few countries in Medieval Europe. Britain, Germany, France, Austria, Hungary, etc. Countries rose and fell during that time period so to know exactly what countries existed you would need to know the year.
Britain was a source of tin. Besides, sailing from Britain was the easiest way to feed their legions in Germany.