I've always thought it would be cool to brew a somewhat authentic 1776 beer for the 4th of July. Kind of hard to find recipe's though I did find this one:
Spruce Beer Recipe from Pioneer Thinking.
5 gallons of water
1/8 pound of hops
1/2 cup of dried, bruised ginger root
1 pound of the outer twigs of spruce fir
3 quarts of molasses
1/2 yeast cake dissolved in 1/2 cup of warm water or 1/2 cup
of liquid homemade yeast
In a large kettle combine the water, hops, ginger root and
spruce fir twigs. Boil together until all the hops sink to the
bottom of the kettle. Strain into a large crock and stir in the
molasses. After this has cooled add the yeast. Cover and leave
to set for 48 hours. Then bottle, cap and leave in a warm place
(70-75 degrees F) for 5 days. It will now be ready to drink.
Store upright in a cool place.