There's no other instrument with as much presence and cultural identity as the guitar. Virtually everyone is familiar with tons of different guitar sounds, from intense metal shredding to soft and jaunty acoustic folk music. And behind all those iconic guitar tones are great sets of strings. Just like a saxophonist changes reeds from time to time or a drummer replaces sticks, putting new strings on your guitar every so often is an important part of owning and playing one.
Try one that starts with C, moves to F, then G and then back to C. This is the most basic progression, and uses the major chords you know. If you start with an A minor before going to C you can make a more interesting progression which incorporates both major and minor chords. Generally speaking, you want to focus on the chord with the same name as the key (the root), which in this case is C. Think of the other chords as either springing from it or leading back to it. Play around with the chords and see what you can come up with!
The Spanish vihuela, called in Italian the "viola da mano", a guitar-like instrument of the 15th and 16th centuries, is widely considered to have been the single most important influence in the development of the baroque guitar. It had six courses (usually), lute-like tuning in fourths and a guitar-like body, although early representations reveal an instrument with a sharply cut waist. It was also larger than the contemporary four-course guitars. By the 16th century, the vihuela's construction had more in common with the modern guitar, with its curved one-piece ribs, than with the viols, and more like a larger version of the contemporary four-course guitars. The vihuela enjoyed only a relatively short period of popularity in Spain and Italy during an era dominated elsewhere in Europe by the lute; the last surviving published music for the instrument appeared in 1576.
Guitars have been played since the Renaissance era, after descending from the ancient Greek instrument, the kithara. Or, at least, that's how the theory goes: the only real proof for this is the similarities between the Greek word and the Spanish word, quitarra. Early guitars often had four strings, evolving into the six-string version we know today in the late 1600s. Anton Stradivari, the famous violin-maker, also had a hand in making guitars. There's now only one Stradivarius guitar left in existence.