Why a harp? Well, that's no mystery: it's a well-known heraldic symbol of Ireland that Guinness adopted for its own purposes. As Guinness was growing in the latter half of the 19th century ...

On April 5, 1862, Guinness formally registered the harp as its official symbol, long before Ireland even had its own government. The first Guinness labels featuring the now-iconic harp were ...

To no avail, Carson’s attempt ... “You just have to touch the bottom of the harp,” the “Aquaman” star said, referring to the image of a harp on the Guinness logo.