When was the trumpet invented

The Conch Trumpet was invented when a fisherman blew a sea animal out of a shell and it made a noise. It was mostly a voice distortion. They shouted into it. Shell trumpets are still used today. In Madagascar, they are used for religious services. In France, they are blown on Easter Sunday. No one player could play the entire range of the trumpet. The range was divided into four parts; Clarino, Second Clarino, Tromba & Principal. Each range required a different mouthpiece, as well as a different trumpet.