Final answer:
The building of the First Transcontinental Railroad in the United States is considered one of the great engineering feats of modern times and has had an enormous benefit to world trade and travel.
Step-by-step explanation:
In the context of transportation, the building of the First Transcontinental Railroad in the United States is considered one of the great engineering feats of modern times. The railway spanned over 1,900 miles and connected the eastern and western coasts of the country, greatly facilitating trade and travel across the nation.
The construction of the railroad began in 1862 and was completed in 1869. It involved overcoming challenging terrain, such as mountains and deserts, and required the labor of thousands of workers. The completion of the First Transcontinental Railroad drastically reduced travel time from coast to coast, fueling economic growth and enabling faster and more efficient movement of goods and people.
This engineering marvel played a significant role in the development of the United States as a global economic power and continues to have an enormous benefit to world trade and travel.