It is located in Maryland.
Answer:
The Modern Period in AP WORLD: MODERN covers from 1750-1900 CE. This is very heavy on economic, social, and political change. The next two of the nine units in AP WORLD: MODERN are featured in this time period. See the chart below for the exact weighting
The Erie canal was started in 1817 and was finished in 1825 at a length of 363 miles.