Few social rituals are as widespread or instinctive as clinking glasses after a toast. At weddings, dinners, and bars and pubs around the world, we reach across the table, touch glasses with a satisfying clink and a quick “cheers,” and take a sip. But where does this custom actually come from? Let’s take a look at the origins of this familiar custom, and try to sort the myth from reality.   The Poison Theory The most common origin story goes something like this: In medieval times, clinking cups or glasses hard enough would cause liquid to slosh and spill from one vessel into another, so if your drinking companion had poisoned your cup, they’d be consuming poison too. As such, the clinking was a way to show that no drinks had been spiked, whether with belladonna, hemlock, arsenic, mercury, or any other common toxin …Read More