<span>These difficulties eventually resulted in the development of a transcontinental railroad. All the inventions and developments in the world are meant to make people's lives easier and comfortable, and this event is not an exception. In order to blur terrotorial boundaries the First Transcontinental Railroad was introduced to the US. It connected the eastern nad western parts of America.</span>
He called it the Iron curtain because Russia separated from Europe. Hope this helps!
The transcontinental railroad united the nation through trade
