Chicken grit should not be confused with a calcium supplement like oyster shell. Grit is for the purpose of aiding in digestion. Oyster shell is for the purpose of adding calcium to your laying flockâs diet. Calcium is the main component in egg shells and is an important element to supplement into your henâs diet.
Castles. The Normans were master castle builders. After 1066, England witnessed a massive castle building programme on the orders of William the Conqueror. First, motte and bailey castles were built.Once William had firmly established his rule in England, he built huge stone keep castles.By the time of Edward I, concentric castles were being built.fter 1066, England witnessed a massive castle building programme on the orders of William the Conqueror. First, motte and bailey castles were built.
1 The large White Tower was started in 1078 by William the Conqueror. Over time the tower has served as a prison, treasury, armory, and royal palace. 2  Leeds Castle - Built in 1119, this castle later became the residence of King Edward I.  Chateau Gaillard - Castle built in France by Richard the Lionheart.