ARCHITECTURE. The principal styles of English Architecture are:

Norman, 1066 to 1154. Round-headed doorways, windows and arches, heavy pillars and zig-zag ornaments. The Nave of Rochester Cathedral is a good example. From 1154 to 1189 this style underwent a Transition, the rounded arches becoming pointed, as in the choir of Canterbury Cathedral.

Early English, 1189 to 1272. Narrow, pointed windows, lancet-shaped; clustered pillars. Example, the choir, Westminster Abbey, or Salisbury Cathedral. 1272 to 1307 was another Transition  period, tracery being introduced into the windows, as at the east end of Lincoln Cathedral.

Decorated, 1307 to 1377. Geometrical tracery in windows, enriched doorways, and beautifully arranged mouldings. The Lady Chapel of Ely Cathedral is a good example. This style underwent Transition  from 1377 to 1407, when the lines became less flowing, as in the choir of York Minster.

Perpendicular, 1399 to 1547. Upright lines of moulding in windows; doorways, a combination of square heads with pointed arches. Example, King's College Chapel, Cambridge.

Tudor, or Elizabethan, 1550 to 1600. A debased species of
Perpendicular, mostly employed in domestic architecture.

Jacobean, 1603 to 1641. An admixture of the Classical with the
Gothic, or Pointed style.