Philadelphia was not settled until approximately half a century later than the other early centers of the North,--Plymouth, New York, Salem, Boston and Providence. Georgian architecture had completely won the approval of the English people, and so it was that few if any buildings showing Elizabethan and Jacobean influences were erected here as in New England. Although several other nationalities were from the first represented in the population, notably the Swedish, Dutch and German, the British were always in the majority, and while a few old houses, especially those with plastered walls, have a slightly Continental atmosphere, all are essentially Georgian or pure Colonial in design and detail. To understand how this remarkable collection of Colonial architecture came into being, and to appreciate what it means to us, it is necessary briefly to review the early history of Philadelphia. Although some small trading posts had been established by the Swedes and Dutch in the lower valley of the Delaware River from 1623 onward, it was not until 1682 that Philadelphia was settled under a charter which William Penn obtained from Charles II the previous year, providing a place of refuge for Quakers who were suffering persecution in England under the "Clarendon Code." The site was chosen by Penn's commission, consisting of Nathaniel Allen, John Bezan and William Heage, assisted by Penn's cousin, Captain William Markham, as deputy governor, and Thomas Holme as surveyor-general. The Swedes had established a settlement at the mouth of the Schuylkill River not later than 1643, and the site selected by the commissioners was held by three brothers of the Swaenson family. They agreed, however, to take in exchange land in what is now known as the Northern Liberties, and in the summer of 1682, Holme laid out the city extending from the Delaware River on the east to the Schuylkill River on the west--a distance of about two miles--and from Vine Street on the north to Cedar, now South Street, on the south,--a distance of about one mile. Penn landed at New Castle on the Delaware, October 27, 1682, and probably came to his newly founded city soon afterward. A meeting of the Provincial Council was held March 10, 1683, and from that time Philadelphia was the capital of Pennsylvania until 1799, when Lancaster was chosen.