During the Roman era,
Eboracum's south-western gate, the
porta praetoria, lay where the square is now. Until the mid-18th century much of the space was occupied by the graveyard of
St Helen's, Stonegate. The streets of
Stonegate and
Davygate ran either side of the graveyard, meeting
Coney Street at a junction known as Cuckold's Corner. In addition a footpath ran across the graveyard, linking Davygate with the junction of Stonegate and
Blake Street. In 1745 St Helen's was given a plot of land on Davygate for use as a new graveyard and the old graveyard was paved over to form St Helen's Square. In the early 20th century the square was enlarged to the south-east, giving it a more regular, rectangular, shape. By 1818
Terry's had set up its shop on the square and it remained there, later also operating as a restaurant, until 1980. In winter the square is now the location of a large
Christmas tree and the city's Christmas lights are turned on in a ceremony held in the square. The square is also a popular location for demonstrations and rallies. 0 ==Layout and architecture==