Answer:
They dressed as Native Americans to conceal their true identities as colonists. The British therefore wouldn't blame the colonies, supposedly.
Explanation:
Sugar Act, also called Plantation Act or Revenue Act, (1764), in U.S. colonial history, British legislation aimed at ending the smuggling trade in sugar and molasses from the French and Dutch West Indies and at providing increased revenues to fund enlarged British Empire responsibilities following the French and Indian War.
The time before humans invented writing is known as prehistory.