It is very difficult to trace a line back to the exact birth of the instrument we know as the guitar today, as there is a lot of myth and uncertainty surrounding its origins.
This is mainly due to the fact there have been a number of similar instruments throughout the ages. Many historians claim the guitar originated at various points in time. Some believe the guitar in its earliest form dates back some 4000 years, however no-one really knows for sure. This is due to a number of artworks that depict guitar-like instruments being used at various times throughout history. Many ancient Egyptian paintings portray musical instruments that could be mistaken for the guitar.
A popular theory is that the guitar could have been invented by the classical-era Greeks. This is due to confusion, however, mainly with the similarity of its name with the Kithara. The Kithara was in fact a type of harp or lyra, which bares little resemblance with the guitar other than in name.
The guitar as we know today appears to be an ancestor of the lute. The lute had four strings which would be plucked, not strummed as with a guitar. The body was oval in shape and had a rounded back. The downside of this construction was that the lute was not a very loud instrument, meaning it could not be played along side other instruments. Although missing many of the elements of today’s guitar, it is an important step in the guitars evolution.
The first written mention of the guitar as a distinct instrument is from the 14th century. In this very early form the instrument had three double courses (or pairs) of strings plus a single string (tuned the highest in pitch), similar in comparison to the lute, as mentioned earlier.
The next step was in the vihuela, which originated in Spain sometime in the 15th century. The vihuela had a slightly ‘pinched’ waist – less pronounced than today’s guitar and a smaller body then the lute. It also had added treble strings, again arranged in pairs and was made to be strummed rather than plucked as the lute was.
It wasn’t until the 16th century that the two instruments were ‘combined’, in a manner of speaking, when an instrument was made with a body like that of the vihuela but closer in size to the lute.
The guitar became popular throughout Europe during the 16th and 17th centuries and by the late 17th century a fifth course of strings had been added below the other four.
By the mid-18th century the guitar began to take its modern form. The double courses were changed to single strings, and a sixth string was added above the existing five. It is very unclear whether this took place in France or in Italy, but the resulting instrument was very similar to that of which we know today.