Answer:
Massachsettensis mentioned those events to reinforce the author's arguments against the rebellion of the colonists.
Massachusettensis was the name used by lawyer Daniel Leonard to publish his letters of loyalty to Great Britain in the Massachusetts Gazette between 1774 and 1775.
In these letters, Leonard mentions the purchase of New York and the War with Canada to emphasize the will of Great Britain to make the empire bigger by favoring her territory in America.
In these letters, he calls on the colonists not to rebel against the British Crown, arguing that he has endeavored to maintain his territory in America in a remarkable way.
