It would be a "strike" that is the term utilized when union workers refuse to work due to contractual disagreements, although this can occur even when contractual issues are not present.
b) Steam locomotive
Peter Cooper was an American industrialist, inventor and philanthropist. He designed and built the first American steam locomotive, the Tom Thumb in 1830. And he did it at the time when the lack of waterways in certain areas required new form of transportation.
JOIN, or DIE. is a political cartoon, attributed to Benjamin Franklin and first published in his Pennsylvania Gazette on May 9, 1754. The original publication by the Gazette is the earliest known pictorial representation of colonial union produced by a British colonist in America.