On May 10, 1869, America was transformed. On this day, the “Golden Spike” was driven into a special railroad tie, joining tracks laid by two railroad companies coming from different directions from the Midwest to the West Coast. With the completion of the effort, for the first time, passengers and freight could traverse the entire Continent of North America, from the Atlantic to the Pacific. Up to this point, the journey West was an ordeal, either accomplished by traveling overland by covered wagon or by ship across the Isthmus of Panama, where disease killed many of the passengers along the way. The trip took weeks or months, and travelers were constantly at risk (the Indian Wars were still being fought, and settlers were being killed, among other perils). This had been the basic mode of cross-country transportation from the time of the Louisiana Purchase in 1803 to the final spike on May 10, 1869. The transcontinental railroad’s completion represented a paradigm shift in our way of life in the United States in the 19th century, rivaled only by the development of commercial air travel in the 20th century.
The construction of the railroad itself took years, and the laying of tracks across the Rocky Mountains and the Sierras was one of the greatest engineering and technological feats in human history. The sheer magnitude of the work that was involved cannot be overstated: vast amounts of materials had to be fabricated and shipped to the work sites; thousands of laborers needed to be hired, transported, fed, clothed and paid; tunnels needed to be dug by hand through miles of rock; wooden bridges needed to be built over canyons and valleys; road beds needed to be cleared and leveled; and routes needed to be negotiated with the government. Most importantly, perhaps, capital needed to be raised to pay for it all. Today we pejoratively talk about the “railroad barons” of the 19th century, yet the men who staked their personal fortunes and those of their investors in order to pay for the building of the railroad were tireless in their fundraising activities, and overseeing the overall enterprise. The collective effort was colossal.
The building of the transcontinental railroad was a literal race between the Central Pacific Railroad Company (building west to east) and the Union Pacific Railroad Company (building east to west). The total miles of track they built was over 1,900 miles, from Omaha, Nebraska to Sacramento, California. Start-to-finish, the construction took almost five years, from October 1863 to May, 1869. Why the race? The federal government had agreed that wherever it was that the two tracks being laid met would define the boundary between tracks owned by the respective companies (and the revenues to be derived therefrom). At one point, the Union Pacific was on a pace that would extend its line well into Nevada, perhaps to the foot of the Sierras. The pace of its early years of track-laying might have led to that result. By comparison, the slow pace of the Central Pacific’s track-laying efforts in the early years would have resulted in that company’s tracks not getting too far east into Nevada. As it turned out, the Union Pacific’s pace slowed down, and the Central Pacific’s pace picked up.
The two tracks finally met in a location that came to be named Promontory Summit in the Utah Territory. There, an elaborate ceremony was conducted on May 10, 1869, in which the “Golden Spike” was tapped into a special railroad tie made of polished California laurel. The spike was indeed made of gold and had the date of completion engraved on it. The man selected to hammer the spike into the tie was Leland Stanford, one of the “Big Four” leaders of the Central Pacific (also including Collis Huntington, Mark Hopkins and Charles Crocker). A large crowd of dignitaries, workers, and onlookers stood by as the spike was driven, followed by celebrations befitting the occasion.

The completion of the transcontinental railroad had immediate and transformative effects on American life. Large numbers of people who might have been deterred from moving west because of the arduous effort needed to cross the Great Plains and beyond—a journey that took months— could now reach San Francisco in a matter of days. The western states and territories gradually became populated by new arrivals, and cities and towns emerged throughout the west. America was now truly “continental.”
We cannot end this story without acknowledging the incredible contributions made by the thousands of Chinese laborers recruited by the Central Pacific Railroad Company to lay tracks across the Sierras and beyond. Contemporaneous accounts uniformly praised the skills and work ethic of these Chinese workers. The work was often dangerous, and many Chinese laborers perished during the most dangerous periods of work, such as when dynamite was used to blast through solid rock in the course of making tunnels across the Sierras. Sadly, while their work was praised by the leaders of the CPPC, racial discrimination was not uncommon among the workforce, and race-based friction was ever-present. Despite this, the efforts of Chinese Americans were critical to the final outcome.
So, this month we commemorate the 156th anniversary of the completion of the transcontinental railroad, one of the greatest chapters in our American story. As importantly, we honor the contributions of the thousands of forgotten Americans whose efforts brought about this history-making event.