# data[].attributes.body
The road connected the the Potomac and Ohio Rivers. It became a main road to the West for many settlers.

# data[].attributes.body
Steamboats went much faster than other boats at that time, making trade faster and easier.

# data[].attributes.body
The Supreme Court said that "courts could declare acts of a state governments void if they violated provisions of the Constitution." (textbook)

# data[].attributes.body
The Erie Canal was what Nathaniel Hawthorne called a "watery highway" that united "the Hudson to Lake Erie."

# data[].attributes.body
Nationalism is "strong loyalty to the nation." (textbook)

# data[].attributes.body
The American System "called for higher tariffs, a new Back of the United States, and internal improvements, including the building of roads, bridges, and canals." (textbook)

# data[].attributes.body
The Second National Bank "restored order to the money supply [and helped] American businesses to grow."  (textbook)

# data[].attributes.body
"All other armed Vessels on the [Great] Lakes shall be...dismantled, and...no other Vessels of War shall be there built or armed" excluding the few ships that are allowed on the Lakes that are written in the letter sent by Charles Bagot to Britain.

# data[].attributes.body
The Missouri Compromise blocked slavery north of 36°, 30°N latitude, but allowed it south of the the line.

# data[].attributes.body
The Convention of 1818 set the boundaries of Canada and America.

# data[].attributes.body
Sectionalism are the "differences in the goals and interests of different parts of the country." (Textbook) It was a main cause of the American Civil War.