TRAJAN COLUMN, a famous historical column erected in Rome, in honour of the emperor Trajan. It is of the Tuscan order, though something irregular; its height is eight diameters, and its pedestal Corinthian: it was built in a large square there, called Forum Romanum. Its base consists of twelve stones, of an enormous size, and it is raised on a socle, or foot of eight steps; within side is a stair-case, illuminated with forty four windows. It is 140 feet high, which is thirty-five short of the Antonine column, but the workmanship of the former is much more valued. It is adorned from top to bottom with basso relievo's, representing the great actions of that emperor against the Daces.