When?
In the year 1497 the intestines and stomach was discovered. On June 6, 1822, a man named Alexis St Martin got shot in the stomach. There was a gaping whole in the stomach. That allowed a man named William Beaumont to do some research on the stomach. Alexis St Martin died at the age of 83 years old The organs were discovered at the end of the fifteenth century. There was a new organ discovered recently. This organ is called the mesentery. His organ is part of the digestive system. The mesentery was discovered in only 2012.