The feudal system of society was most prevalent in the (Medieval Era).<span>
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There are many works in the 20th century Fauvism movement that used good perspective. Fauvism is also well known for abstract colour combinations and vibrancy.
Rock and roll is a style of popular music that originated from the U.S in the mid-1950s, and by mid-1960s it had developed to an international style known as rock music, though the latter continued to be, rock and roll or rock 'n' roll or rock & roll. The music is associated with performers like Little Richard, Chuck Berry, Buddy Holly and the early Beatles. Instrumentation and arrangements are simple: three or four instruments, and, mostly the same number of cords while horns and strings and back up singers can be added.