They suck cack.. So much cack that they can't breate.. If this answer was helpful then please add a new one for the sake of my grade...
I'd say they shut down, because most of the men enlisted as soldiers for the war. At that time/era, the workforce were mainly men, with the women staying home and taking care of the house.
Answer:
American Revolution is your answer
Explanation:
Event 1: Dynamite invented in 1869
Event 2: First Transcontinental railroad completed in 1869
Event 3: Internal combustion engine invented in 1876
Event 4: Electric light bulb invented in 1879
Event 5: First gasoline powered tractor invented in 1892