The railroad made it possible to colonize the West, offered new economic opportunities, sparked community and town growth, and generally connected the nation.
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What are railroads?</h3>
Railroad, a kind of land transportation using self-contained engines or locomotives to pull flange-wheeled vehicles over two parallel steel rails or tracks. In the 16th century, railroads were first constructed in European mines using cars pulled by people or animals. The modern railroad evolved swiftly after the steam locomotive was invented and the first railway was built in 1825. The Baltimore and Ohio Railroad, the country's first railroad, started construction in 1828. Specialized railroad vehicles, such as the sleeper cars created by George Pullman in 1859, were constructed to convey both freight and passengers. The railroad impacted every nation's economic and social growth during the 19th century.
When the transcontinental railroad was finished in the United States in 1869, it marked the start of a period of railroad growth and consolidation that included such business titans as Cornelius Vanderbilt, Jay Gould, Edward H. Harriman, James J. Hill, and Leland Stanford. The railroad's significance in the United States started to decline in the early 20th century, although it is still crucial for international travel in Europe, Asia, and Africa. Additionally, see Trans-Siberian Railroad and Orient Express.
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Answer:
Harvey stated that the veins returned blood to the heart
Explanation:
William Harvey provided proof;
That the theory of blood consumption by the body was not correct.
There are two separate blood flow loops
Blood in the veins flow towards the heart with one way blood flow bw=eing maintained by valves in the blood vessels
The correct option is therefore;
'Harvey stated that the veins returned blood to the heart'
Answer:
Explanation:
okay my question this for u.s history
What factors led to the end of Reconstruction?
please help me if you know thank you
