Guitar Originated From

I need help INSRUMENT project in music ..... Help?
Ok I need to know these things about the following insturments, where it originated, which is used to (eg, bands they perform in?), which materials are made, and how the instrument is played. I need to know this for trumpet, violin, castanets, maracas, bongos, Guiro, and guitar. PS: I really do not want to hear anyone say that I need to do my own homework ... I am well aware that ... I just can not find these ... Well anyway thanks for your help ... Oh, and if you respond to try to get these correct ... Thanks ...
trumpets are part of the brass section. They are made of steel I think, and you play through a nozzle. violin is on the ropes, or orchestra, prevailed. They are made of wood and horsehair, and are played with a bow on the shoulder. gourd maracas are in the percussion section, made of wood, the times, are reproduced and shaking them. Bongo drums are. are on percussion, do not know what is done, but you play them with your hands. guitar is string? .. I'm not sure about it, but is made of wood, and you play with your hands. guiro castanets and I'm not sure
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