What was the name of the ceremonial spike driven to signify the completion of the First Transcontinental Railroad?

The ceremonial spike that marked the completion of the First Transcontinental Railroad is known as the Golden Spike. Driven into the final tie at Promontory Summit, Utah, on May 10, 1869, it symbolized the joining of the Central Pacific and Union Pacific railroads, completing a monumental achievement in American infrastructure and transportation. The use of gold for the spike was not only a nod to the prosperity that the railroad was expected to bring to the nation but also created a significant historical artifact that has since come to represent the transformative impact of railroads on the expansion and development of the United States. This event was celebrated nationwide, underscoring the importance of rail connectivity in linking the East and West coasts.