Topic summary
Stringed Musical Instrument

Extracted from the Wikipedia article String instrument.
Earliest string instruments
Dating to around c. 13,000 BC, a cave painting in the Trois Frères cave in France depicts what some believe is a musical bow, a hunting bow used as a single-stringed musical instrument. From the musical bow, families of stringed instruments developed; since each string played a single note, adding strings added new notes, creating bow harps, harps and lyres. In turn, this led to being able to play dyads and chords. Another innovation occurred when the bow harp was straightened out and a bridge used to lift the strings off the stick-neck, creating the lute.