One of Europe's most eminent mathematicians and physicists has been honoured at a remote County Tyrone churchyard 200 years after his birth.

James MacCullagh was born in the townland of Landahussy and went on to teach at Trinity College Dublin.

An Ulster History Circle plaque was unveiled at his family tomb at St Patrick's Church, near Plumbridge.

The plaque is part of a programme of events organised by the Glenelly Historical Society to mark his life.