Back in the day, root beer floats had a helluva lot more kick. From the 1700s on, Root Tea (as it was called) came heavy in spirit. But then the Temperance Movement rolled into town and a pharmacist in Philly removed the booze and ironically called it beer.
The folks who gave us Hendrick's Gin are returning to the roots of root beer via their unit Art in the Age (of Mechanical Reproduction). They're now pumping out the "first true American Liqueur in nearly 100 years" - 80 proof ROOT. It's all organic - and damned tasty (just like the more innocent stuff you're used to). It's still only available in Pennsylvania liquor stores and online in 28 states.