Rock music originated in the 1950s as rock and roll and developed into various styles, centered around the electric guitar, bass, and drums. Early influential rock artists included Elvis Presley, Chuck Berry, and Little Richard. In the 1960s, rock was influenced by R&B, surf rock, and rockabilly, and important bands emerged like The Rolling Stones and The Beatles. Rock continued evolving in the 1970s with artists such as Jimi Hendrix, Bob Dylan, and Led Zeppelin, and subgenres like heavy metal and punk rock developed in later decades.

2. Rock music is a genre of popular music that
originated as "rock and roll" in 1950s America and
developed into a range of different styles in the 1960s
and later, particularly in the United Kingdom and the
United States.

3. The rock comes from jazz, rhytm & blues, and
country music.
Musically, rock has centered around the electric
guitar, usually as part of a rock group with bass guitar
and drums.

4. The first rocker are Elvis Prestley. His first song “That
´s All Right Mama” are the first rock song.
Elvis Prestley : 8 of january 1935 – 16 of august 1977.
Also Chuck Berry, Bo Diddley and Little Richard are
famous rockers of 50´s.

5. In years 60´s the rock has influnced by r&b, surf rock,
and rockavillie. The most important groups of 60´s
are The Rolling Stones, and The Beatles.

6. The end of the 60s is characterized by a highly
ideological in rock
There were singers and influential groups like Jimi
Hendrix, Bob Dylan, Eric Clapton and Jefferson
Airplane and others.

7. In this decade there were several of the greatest rock
bands of all time such as Led Zeppelin, Black Sabbath,
Aerosmith, AC DC, Deep Purple and Scorpions.

8. Start an evolution towards heavy metal rock. They are
among the most influential bands Iron Maiden, Bon
Jovi, Europe, Mötley Crüe, Quiet Riot or Twisted
Sister.

9. In the second half of the 80's, there is a group that
stands above the others: Guns And Roses. Combine
elements of heavy metal on your hard Appetite for
Destruction.
Groups are also important in what is known as thrash
metal. Metallica or Megadeth stand out in this genre.

10. The second wave of black metal and oasismania. Also
the death metal comes alive. But what this highlights
is definitely decad grunge.
 Notable among all groups Nirvana.With the hit
single "Smells Like Teen Spirit", the album Nevermind
(1991), Nirvana climbed the charts worldwide and
initiated the explosion of what was hitherto
underground punk and alternative rock in the world
music scene, in a move that means the time would
refer to as "grunge".

12. Following the wave of pop-punk from 2000 to 2005
with bands like The Offspring, Green Day, Blink 182,
Sum 41, NOFX, among others.
In terms of pop and alternative rock alternative rock
which use the guitar, drums, pianos, synthesizers,
etc.. include Linkin Park, Muse, Coldplay, Green Day,
Evanescence and Incubus. Early and mid-2000s.

13. In Spain arrives with rock groups like The Beatles, but
when truly succeeds is from 1975. The first rock
groups were among others Los Brincos.
But not until the 80's when the rock reaches its peak.
Rock groups as Nacha Pop, Leño, Los Secretos or
stand.

14. In the 90's came the great rock bands in the history of
Spain, such as Platero y Tú, Extremoduro, Heroes Del
Silencio or Mägo De Oz.

15. http://www.youtube.com/watch?v=346buRwtrOU

16. ALEJANDRO MILLE CICUÉNDEZ.