Instituted April 5, 1764: the Sugar Act

From Heritage:

The Sugar Act is often overshadowed by its infamous cousin: the Townshend Act and its tax on tea. But the outcome of the Sugar Act, instituted on this day in 1764, is significant enough to stand alone in American history. Though it did not have the flair of war-painted men seasoning the Boston Harbor, the imposition of the Sugar Act marks one of the first times the colonists gathered together to protest Parliament’s encroaching authority.

[....] The Sugar Act was also the impetus for the colonists to doubt whether Britain had the authority to demand taxes without colonial representation in Parliament. In 1764 James Otis asked, “can there be any liberty where property is taken without consent?” The question still stands.