American judges have exercised these powers of ascertaining and developing unwritten law even more freely than English judges. They were forced to it as a result of applying the common law of one people to another people inhabiting another part of the world and living under very different social conditions. In doing this it was necessary to reject not a little of what for England had already been definitely settled and universally accepted. The legislatures of the colonies and States rejected much, but the courts rejected more. The legislatures also added much, but the courts added yet more. Usages grow up rapidly in new settlements and along frontiers bounded by territory held by savages. Of such usages, under the rulings of the courts, many were soon crystallized into law. New inventions and new political conceptions in the eighteenth century began to change the face of the civilized world. The common law as to agency had to be adapted to the operations of business corporations; that as to highways to railroads; that as to contracts by mail to contracts by telegram, and later to contracts by telephone. The whole law of master and servant, which for the English people was bottomed on the relation of land-owner and serf, was to be recast. Public assemblies were to be regulated and their proceedings published with greater regard to public and less to private interest.[Footnote: Barrows _v._ Bell, 7 Gray's Reports, 301; 66 American Decisions, 479.] Along all these lines and many others the American courts have now for nearly three hundred years been quarrying out American law from the mine of the unwritten law of the people within their jurisdiction. It has been their natural endeavor to make each part of the new system of jurisprudence which they were gradually building up harmonious with every other and to give a certain symmetry to the whole. This has forced them to deduce rule from rule and principle from principle with a freedom for which in older countries of settled institutions there is less occasion. The process has gone on during the last fifty years with ever-increasing rapidity, and for two reasons. There have been more novel questions to meet and there has been a greater wealth of suggestion and precedent at command.