Final answer:
The protest by farmers against a tax on alcohol they used for trade is known as the Whiskey Rebellion.
Step-by-step explanation:
The event you are asking about, where farmers protested by tarring and feathering tax collectors over a tax on alcohol they produced and traded, is known as the Whiskey Rebellion. This uprising occurred in the 1790s after the federal government imposed an excise tax on distilled spirits.
Farmers in the western regions, particularly in Pennsylvania, were deeply affected as they converted their grain into whiskey, which was easier to transport and also used as a currency in cash-poor areas. As a response to what they perceived as an unfair tax by a distant government, they began to express their discontent through violent means, including the tarring and feathering of tax collectors.