What is associated with: cornwallis surrendered on this virginia peninsula in 1781 message to george iii game over?

What is associated with: cornish the language of this county of england became extinct in 1777? What is associated with: cornplanter a chief of this confederacy signed a 1784 treaty ceding the us all land w of the n… Which performer is associated with 'cornucopia'? Based on the clue 'cornwallis once referred to this nc city as a horn...', what is the answer? What is associated with: corny 1945 film with bette davis as a devoted welsh schoolteacher? What is referred to by 'cornyn hutchinson'? Based on the clue 'coro refers to the pupil of the eye this one lette...', what is the answer? Based on the clue 'coroebus of elis was the first winner in the first...', what is the answer?