The first capo known to mankind was invented in the mid 1700’s and this device was basically a single piece of brass which was bent to a C-shape. This piece of brass was pressed on to the selected instrument’s neck from the side and was held tightly in place by the brass piece’s own tension. This device was not considered to be ideal since it caused significant scratches on the neck, due to not having any padding. However, this was the start of creating better capos that ended up helping musicians play stringed instruments with ease.
In the late 1700s, two other types of capos were invented and these devices were called, the English yoke and the Spanish cejilla. The English Yoke got its name since it was shaped exactly like an egg yoke but had a crossbar padded along with that rested primarily on the strings. This type of unique capo was secured through a screw that was in the middle of the yoke, which pressed against the neck of the stringed instrument. In the case of some English guitars, the egg yoke capo had a screw that penetrated the neck of the guitar. The cejilla was shaped like a “little eyebrow” due to the shape of its string. This uniquely shaped capo was a large block made of wood that has a screw at the top and a string was threaded through a hole in this screw which was then looped around the stringed instrument that is guitar and tied to the other side. The capo was then fastened to the stringed instrument or guitar by the means of turning the screw and drawing the strings tighter.