The classification of furniture in England is on a different basis from that of France, as the rulers of England were not such patrons of art as were the French kings. Flemish, Dutch and French influences all helped to form the taste of the people. The Jacobean period lasted from the time of James I to the time of William and Mary. William brought with him from Holland the strong Dutch feeling that had a tremendous influence on the history of English furniture, and during Anne's short reign the Dutch feeling still lasted. It was not until the early years of the reign of George II that the Georgian period came into its own with Chippendale at its head. Some authorities include William and Mary and Queen Anne in the Georgian period, but the more usual idea is to divide it into several parts, better known as the times of Chippendale, Adam, Hepplewhite and Sheraton. French influence is marked throughout and is divided into parts. The period of Chippendale was contemporaneous with that of Louis XV, and the second part included the other three men and corresponded with the last years of Louis XV, when the transition to Louis XVI was beginning, and the time of Louis XVI. It was not until the latter part of Chippendale's life that he gave up his love of rococo curves and scrolls, dripping water effects, and his Chinese and Gothic styles. His early chairs had a Dutch feeling, and it is often only by ornamentation that one can date them. The top of the Dutch chair had a flowing curve, the splat was first solid and plain, then carved, and later pierced in geometrical designs; then came the curves that were used so much by Chippendale. The carving consisted of swags and pendants of fruit and flowers, shells, acanthus leaves, scrolls, eagle's heads, carved in relief on the surface. Dutch chairs were usually of walnut and some of the late ones were of mahogany. Mahogany was not used to any extent before 1720, but at that time it began to be imported in large quantities, and its lightness and the ease with which it could be worked made it appropriate for the lighter style of furniture then coming into vogue. Chippendale began to make chairs with the curved top that is so characteristic of his work. The splat back was always used, in spite of the French, and its treatment is one of the most interesting things in the history of English furniture. It gave scope for great originality. Although, as I have said before, foreign influence was strong, the ideas were adapted and worked out by the great cabinet-makers of the Georgian period with a vigor and beauty that made a distinct English style, and often went far, far ahead of the originals.