Columbia subject headings:
Northern War, 1700-1721.
Peter I, Emperor of Russia, 1672-1725.
Poltava, Battle of, Poltava, Ukraine, 1709.
Harvard subject headings:
Northern War, 1700-1721.
Poltava, Battle of, Poltava, Ukraine, 1709.
Princeton subject headings:
Northern War, 1700-1721.
Poltava, Battle of, Poltava, Ukraine, 1709.