Answer:
1. Connected Charleston and Hamburg. - South Carolina Railroad
The South Carolina Railroad connected Charleston to Hamburg, both in South Carolina and operated between the years 1843 to 1894.
2. Connected Albany and Schenectady. - Mohawk and Hudson Railroad.
The Mohawk and Hudson Railroad is nicknamed the Albany and Schenectady as it connected the Mohawk River at Schenectady with the Hudson River which was at Albany.
3.Tom Thumb. - Baltimore and Ohio Railroad.
Tom thumb was the name of the first steam locomotive built by Americans and it was used as a demonstration to the owners of Baltimore and Ohio Railroad to switch to steam engines.
4. Caused a decline in canal building - railroad transportation
Railroad transportation made it easier and faster to transport goods and so as more railroads were built, the more canals became useful.
5. Made New York City a leading port - Erie Canal
The Erie Canal connected New York to the Midwest as well as to the Atlantic ocean and made New York a major port as a result.
6. Connected Philadelphia and Pittsburgh - Pennsylvania canals
The Pennsylvania canals were a series of canals that connected Philadelphia with Pittsburgh from the years 1830 to 1860.
7. Completed in 1834 - Portage Railroad
The Allegheny Portage Railroad of Pennsylvania was constructed from 1831 to 1834 and operated from then till 1854 when operations were scaled back.
