When was the norman invasion in europe?

The Norman conquest of England was the 11th-century invasion and occupation of England by an army of Norman, Breton, and French soldiers led by Duke William II of Normandy, later styled as William the Conqueror.

William's claim to the English throne derived from his familial relationship with the childless Anglo-Saxon King Edward the Confessor, who may have encouraged William's hopes for the throne. Edward died in January 1066 and was succeeded by his brother-in-law Harold Godwinson. The Norwegian king Harald Hardrada invaded northern England in September 1066 and was victorious at the Battle of Fulford, but Harold defeated and killed him at the Battle of Stamford Bridge on 25 September. Within days, William landed in southern England. Harold marched south to confront him, leaving a significant portion of his army in the north. Harold's army confronted William's invaders on 14 October at the Battle of Hastings; William's force defeated Harold, who was killed in the engagement.

the of atp are the key to its ability to store and supply energy;

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the phosphate groups of atp are the key to its ability to store and supply energy. atp releases energy when it breaks bonds between its phosphate groups.