Know about guitar

Hi guys,
The first narrow-waisted guitars appeared in 15th century Italy and Spain, and where derived from stringed instruments of an ancient world. Modern steel string, flat-top and arch top acoustic guitar, however, originated in 19th century North America, at a similar time to the development of classical guitars in Spain. Electric guitars were the result of research in to artificial amplification of sound from musical instruments in the 1930s. Thank you.