https://web.archive.org/web/20031006013813/http://www.irs.gov/individuals/page/0,,id=15565,00.html
The IRS for Kids website used to include an interactive Taxes in US History curriculum concentrating on the Whiskey Rebellion of 1794, the protective tariff issue of the 1830s, and the income tax's introduction in the early 1900s
Each topic had an "activity zone"