Surgical suture father of medicine, Hippocrates, described suture techniques, as did the later Roman Aulus Cornelius Celsus. The 2nd-century Roman physician Galen described gut sutures. In the 10th century, the catgut suture along with the surgery needle were developed by Abulcasis. The catgut suture was similar to that of strings for violins, guitar, and tennis racquet and it involved harvesting sheep intestines. Joseph Lister endorsed the routine sterilization of all suture threads. He first attempted sterilization with the 1860s "carbolic catgut," and chromic catgut followed two decades later. Sterile catgut was finally achieved in 1906 with iodine treatment. The next great leap
Chakhe of bamboo, ivory, bone or wood, graduated between 2 and 3.5 cm in height, which are affixed to the fretboard with wax or glue. Its highest two strings are made of silk yarn, catgut or nylon while the lowest is made of metal. They are tuned C–G–c. The instrument is usually supported by three or five legs. The player—sitting beside the instrument—uses his or her left hand on the fretboard while plucking the string with his right hand with a 5- to 6-cm long, tapered plectrum made from ivory, bone or water buffalo horn, which is tied to the player's