The guitar originated in 15th century Spain and has since become one of the most popular instruments worldwide. It is a string instrument typically played by strumming or plucking the strings with fingers or a pick. The modern guitar has six strings and comes in both acoustic and electric varieties. Key developments included the addition of the fifth and sixth strings during the Renaissance and Baroque eras, and Antonio de Torres' popularization of the fan bracing technique and larger design in the 19th century, establishing the blueprint for the modern classical guitar.

1. By Kevin C

2.  Guitar is the most common instrument that you can
hear its voice everywhere, so you must know guitar
thorough to know why it’s so famous through the
world.

3.  The Guitar is a pluck string instrument, it’s usually
played by fingers or pick. A pick is a triangular tool that you
use to strum the string in the guitar. The guitar has a body
with a firm neck to which the six strings are attached.
Guitar are traditionally made by several woods and strung
with animal gut, nylon or steel strings. There are three
main types of modern Acoustic guitar: Classical, Steel
String, and the Archtop guitar. Electric guitars were found
in the 1930’s, it use an amplifier to make the sound. Early
electric guitar has a hollow body, but solid body was found
more suitable for people. Guitar are recognized as a
primary instrument in genres such as blues, bluegrass,
country, flamenco, jazz, jota, mariachi, reggae, rock, soul,
and many forms of pop.

4. The guitar's roots are in Spain. Realistically, it cannot be traced back further than the 15th
Century. It is thought to have been invented by the people of Malaga. This early instrument
was a "four course" guitar, from which the ukulele is derived. The first guitars were very small,
and were originally strung with four pair of strings. Each pair was call a course.
Eventually, the guitar began to attract players, more publications and music began to appear.
During the During the Baroque period, A fifth course was added. Even more music became
available. It's repertoire and the complexity of the music increased.
The fifth course was tuned in one of three ways.
At the end of the Baroque period two significant changes were made. The double strings were
replaced by single strings, and instead of five strings, there were six single strings.
During the Classical period there were many publications, composers and performers.
Fernando Sor, Mauro Guilliani, Matteo Carcassi, Fernando Carulli and many others wrote
music, published methods and performed concerts. The guitar was very popular and guitar
concerts were common.
At the end of the 19th century, the guitar had fallen out of favor, but was resurrected by
Francisco Tarrega. His best piece in my opinion is the now very famous "Receurdos De La
Alhambra." He did few public performances and chose to perform for friends at his home. He
did compose, and he wrote a method for teaching guitar. He also transcribed many pieces of
music for the guitar. Segovia was one of many guitarists that were influenced by him. Tarrega
began the tradition of playing with the fingernails.
Up until this point the instrument itself was small and narrow. Antonio de Torres (1817 - 1892)
worked with the design and construction of the guitar. He increased the size and
experimented with anything that would improve the sound, and was especially interested in
volume. He was the first maker to use "fan" bracing underneath the top. He once built a
Guitar with a spruce top and paper mache back and sides to prove his theory that it was the
top that produced most of the volume. He was the father of the modern guitar.
Nylon strings were a big improvement over gut strings. They replaced gut in 1946.

5.  Acoustic guitars
 Renaissance and Baroque guitars
 Classical guitars
 Extended-range classical guitars
 Flamenco guitars
 Flat-top (steel-string) guitars
 Archtop guitars
 Selmer-Maccaferri guitars
 Resonator, resophonic or Dobro guitars
 Twelve-string guitars
 Russian guitars
 Acoustic bass guitars
 Guitarrón
 Tenor guitars
 Harp guitars
 Extended-range guitars
 Guitar battente
 Electric guitars

6.  1 Headstock
 2 Nut
 3 Machine heads (or pegheads, tuning keys, tuning machines, tuners)
 4 Frets
 5 Truss rod
 6 Inlays
 7 Neck
 8 Heel (acoustic)–Neckjoint (electric)
 9 Body
 10 Pickups
 11 Electronics
 12 Bridge
 13 Pickguard
 14 Back
 15 Soundboard (top)
 16 Body sides (ribs)
 17 Sound hole, with Rosette inlay
 18 Strings
 19 Saddle
 20 Fretboard (or Fingerboard)

7.  Guitar is a very interesting and beautiful instrument,
so if you have a chance beside a guitar, play it!

8.  Guitar by Wikipedia at
http://en.wikipedia.org/wiki/Guitar
 Guitar by The Columbia Encyclopedia at
http://www.encyclopedia.com/topic/guitar.aspx
 History of the guitar by Dan Cross
http://guitar.about.com/od/education/a/history_guita
r.html