Misc: in the cartoon 'marine boy' what was marine boy's dolphin named?

Questions

In 1215 King ---------- signs Magna Carta at Runnymede, England.?

In 1215 King John signs Magna Carta at---------- , England.?

In 1330 ---------- the black prince, prince of Wales (1343-1376), born.?

In 1649 Margaret ---------- of Charlestown became the first person tried and executed for witchcraft in colonial Massachusetts. ?

In 1785 ---------- French balloonists die in world's 1st fatal aviation accident.?