III. The Old West began the movement of internal trade which developed home markets and diminished that colonial dependence on Europe in industrial matters shown by the maritime and staple-raising sections. Not only did Boston and other New England towns increase as trading centers when the back country settled up, but an even more significant interchange occurred along the Valley and Piedmont. The German farmers of the Great Valley brought their woven linen, knitted stockings, firkins of butter, dried apples, grain, etc., to Philadelphia and especially to Baltimore, which was laid out in 1730. To this city also came trade from the Shenandoah Valley, and even from the Piedmont came peltry trains and droves of cattle and hogs to the same market.[108:1] The increase of settlement on the upper James resulted in the establishment of the city of Richmond at the falls of the river in 1737. Already the tobacco-planting aristocracy of the lowlands were finding rivals in the grain-raising area of interior Virginia and Maryland. Charleston prospered as the up-country of the Carolinas grew. Writing in the middle of the eighteenth century, Governor Glenn, of South Carolina, explained the apparent diminution of the colony's shipping thus:[108:2] Our trade with New York and Philadelphia was of this sort, draining us of all the little money and bills that we could gather from other places, for their bread, flour, beer, hams, bacon, and other things of their produce, all which, except beer, our new townships begin to supply us with which are settled with very industrious and consequently thriving Germans. It was not long before this interior trade produced those rivalries for commercial ascendancy, between the coastwise cities, which still continue. The problem of internal improvements became a pressing one, and the statutes show increasing provision for roads, ferries, bridges, river improvements, etc.[109:1] The basis was being laid for a national economy, and at the same time a new source for foreign export was created.