Answer:
Most connections are on the East Coast.
"The United States has the largest rail transport network size of any country in the world. The nation's earliest railroads were built in the 1820s and 1830s, primarily in New England and the Mid-Atlantic region. The Baltimore and Ohio Railroad, chartered in 1827, was the nation's first common carrier railroad." per Wikiapedia.
Explanation:
https://en.wikipedia.org/wiki/Rail_transportation_in_the_United_States
The focus of the lecture will be on how the brain has an innate mechanism of learning a language. He believed that all human language is from a common source. in addition to this, he also proposed that language was formed from a set of grammatical rules and how the mind approaches it is very naturalistic.