No primary or archival record documents who created National Beverage Day or when it began. A popular account ties it to a 1920s carbonated-bottlers' promotion, but that story rests on a single secondary retelling and is not confirmed by any archive or by the beverage industry's own trade body. It is best understood as an undocumented, community-circulated US observance.
The brain and heart are about three-quarters water.
Up to 60 percent of the adult body is water, and the brain and heart run at about 73 percent. A day about beverages is, underneath the branding, a day about the one liquid the body cannot do without.



