Water hasn't always been H2O. This isn't true. All you have to do is cross the Mexican border, and over there, it's "aqua" that's H2O.

­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ ­ - El chavalito irlandés, 2022