Good morning one and all. According to Checkiday(.com), today is Black Cow day, or better know as the root beer float or ice cream float.
For sometime, soda drinks were a controlled substance, like alcohol, in some US states. It was banned on Sundays which according to legend, resulted in the invention of the 'sunday'.
https://en.m.wikipedia.org/wiki/Ice_cream_float
A/V won't leave you alone? have a black cow man!