What are 2 things the railroad supplied from the west to other parts of the world ?

What technology was used to show that the railway was complete ?

Is this just in the United States?

Yes

passengers, gold, silver, farm products

The telegraph announced the completion of the transcontinental railroad.

The railroad in the western part of the United States supplied various goods and resources to other parts of the world. Two examples of things that were supplied are:

1. Natural Resources: The railroad facilitated the transportation of natural resources such as timber, minerals, and agricultural products from the west to other parts of the world. These resources were important for industries, construction, and feeding growing populations in different regions.

2. Agricultural Products: The railroad allowed for the efficient transport of agricultural products, like grains, fruits, and livestock, from the western farms to markets across the globe. This enabled farmers to expand their reach and access new customers, leading to increased trade and economic growth.

To determine if a railway was complete, a technology known as a surveyor's level was commonly used. A surveyor's level is essentially a device that measures the relative height of different points along a railway track. It consists of a telescope-like instrument mounted on a tripod. When the level is set up at one point on the track, it can be used to measure the difference in height between that point and other points along the line. This allowed engineers and surveyors to ensure that the track was level and properly aligned, ensuring safe and efficient operation of the trains. By using the surveyor's level, they could determine if the railway construction was complete and met the required specifications.