The First Transcontinental Railroad was a 1,912-mile continuous railroad line constructed between 1863 and 1869 that connected the existing eastern U.S. rail network at Omaha, Nebraska/Council Bluffs, Iowa with the Pacific coast at the Oakland Long Wharf on San Francisco Bay.
Becuase all the islands around it because most of them have good fishing ports and other spots for trading
It adds emphasis to that phrase, and implies a deeper meaning
I could be wrong, but i believe it was September 3, 1783. Hope this was helpful! :)
The correct answer D....Spatial apex answer
