In the Middle Ages, Holborn, located at the junction of the roads leading to the north, to London in the east and to Oxford in the west, was a village surrounded by fields where archers practiced and duellists fought. Today the manors are law schools. The only traces of St Etheldreda's Chapel and the fortifications of the palace of the bishops of Ely remaining are their names. The common lands have sunk but remain open: the market is now a world centre of the diamond trade.