Notwithstanding these and similarly optimistic sentiments, the meager financial support given to the enterprise by the public at large had been very discouraging. Although the construction had been liberally subsidized by the Government, gross extravagance had promptly crept in; juggling of accounts for the purpose of securing profits on the government advances was freely indulged in, and after only a small section of the line had been completed it was announced that more capital must be forthcoming or the work would cease. Out of this situation grew the plan for subletting the work to a construction company known as the Pennsylvania Fiscal Agency--a name which was afterwards changed to that of the Credit Mobilier of America. The story of the Credit Mobilier, with its irregularities involving conspicuous politicians, is one of the most disgraceful in American history. The detailed history of these operations need not be considered here; it is sufficient to say that finally, in spite of political scandals, the Union Pacific lines were brought to completion. Within two years after the letting of the contracts to this new company, in 1866, over five hundred miles of road were completed and in operation. An advertisement published late in 1868 announced that "five hundred and forty miles of the Union Pacific Railroad, running west from Omaha across the continent, are now completed, the track being laid and trains running within ten miles of the Rocky Mountains.... The prospect that the whole grand line to the Pacific will be completed by 1870 was never better." As a matter of fact, the line through to the coast was finished earlier than had been predicted. One fact which increased the rapidity of construction was the growing financial difficulty of the company. It was absolutely imperative that the through line be completed in order that the resulting business might make the operation of trains pay. But aside from this, another influence was at work to encourage rapid construction. The Act of 1862 provided that the Central Pacific might also build across Nevada to meet the Union Pacific, on condition that it completed its own allotted section first. As the Central Pacific also was receiving a heavy government subsidy per mile, and as there was great profit in construction undertaken with this government subsidy, there was naturally a strong incentive for both companies to build all the mileage possible and as rapidly as possible. The Central Pacific enterprise was backed by a group of men who were awake to the possibilities of the situation and who had made large fortunes in the gold-mining boom of previous years, such as Leland Stanford, Collis P. Huntington, Mark Hopkins, and the Crockers. The rivalry between them and the Union Pacific interests woke the whole continent and formed a chapter in American railroad history as startling and romantic as anything in the stories of the Vanderbilts and Goulds with their financial gymnastics.