Misc: in beast wars what is the name of the maximal ship?

Questions

In 1989 Nelson ---------- recieves a BA from University of South Africa.?

In 526 St ---------- ends his reign as Catholic Pope.?

In 1830 Edwin ---------- of England signs an agreement for manufacture of his invention, the lawn mower.?

In 1868 ---------- last Russian tsar (1894-1917), born.?

In 1872 Bertrand ---------- England, mathematician/philosopher (Nobel 1950), born.?