National Root Beer Float Day, which falls on Aug. 6, is devoted to celebrating the yumminess of the classic treat that has spanned generations and continues to win hearts to this day.

The key ingredient in creating this drink is root beer, which is an amalgam of aromatic roots and bark, flowers, leaves and berries. The old-world charm of root beer has long been the main ground of its popularity and to top up its appeal, a scoop of vanilla ice cream is added to the chilled frothy drink.

The origin of root beer float dates back to 1893 when Frank J. Wisner of Cripple Creek, Colorado, added a scoop of vanilla ice cream to Myers Avenue Red Root Beer. The idea occurred to him after being mesmerized by the sight of a full moon shining on snow-capped Cow Mountain, which reminded him of vanilla ice cream.

In celebration of National Root Beer Float Day, many restaurants famous for doling out lip-smacking root beers are offering some great deals. Thanks to these promos, root beer float fanatics can grab their favorite drink at either discounted prices or no cost at all.

A&W Restaurants

Based in California, this fast-food chain is famous for its signature root beer floats. As always, it is offering some great deals this year.

In case you're a huge root beer float fan who's currently in sunny California, you can drop by at any A&W Restaurants branch and enjoy a drink.

Hamburger Stand

Its outlets can be found in four different states across the U.S., such as Arizona, California, Colorado and Wyoming. Known for offering free root beer floats every Aug. 6, Hamburger Stand is definitely not missing the tradition this year.

This means you can expect a root beer float on the house when you make any purchase Friday.

Wienerschnitzel

Based predominantly in California and Texas, this restaurant is guaranteed to offer free root beer floats with any purchase.

All you need to do is use this coupon upon check out to redeem your free root beer float. Just keep in mind that a customer can only use one coupon.

Tito's Root Beer Float
Bring the nostalgia to your Fourth of July party with this adult root beer float. Tito's Handmade Vodka