<span>The share of people in the labor force involved in agricultural work has not only declined, it has declined dramatically over the last century. Although agricultural employment had already been in gradual decline from its peak, the widespread introduction of the mechanized tractor and combine in the 1920s caused a sharp decline which has continued, though at a slower pace, to this day. Currently about 2% of the workforce is engaged in agricultural production, down from 50% a century and a half ago.</span>
The Declaration of Independence
Because of British seizure of American ships and because of impressment of American seamen. :) I hope this helps!
Answer:
Best Friend of Charleston
Locomotive
Description
The Best Friend of Charleston was a steam-powered railroad locomotive which is widely acclaimed as the first locomotive to be built entirely within the United States for revenue service. It produced the first locomotive boiler explosion in the United States.