The worldâs water exists naturally in different forms and locations: in the air, on the surface, below the ground, and in the oceans. Freshwater accounts for only 2.5% of the Earthâs water, and most of it is frozen in glaciers and ice caps.
On Christmas Day, 1066, William the Conqueror was crowned the first Norman king of England, in Westminster Abbey, and the Anglo-Saxon phase of English history came to an end. French became the language of the kingâs court and gradually blended with the Anglo-Saxon tongue to give birth to modern English.
These first knights and barons, followers of William the Conqueror, were known as the Normans, and were a very powerful lot. They built castles almost everywhere in Britain, hundreds of which still survive. Stone castles were built for stability and to symbolize the power of the lords of the kingdom.