Gelatin was discovered in 1682 by Denis Papin. Prior to the discovery of gelatin there was evidence it was used in ancient Egypt. Denis Papin experimented with different ways from extracting gelatin from animal’s skin bones and other parts through boiling. When gelatin was 
First in the market it was very expensive and only rich people could afford to use it. Over the years the processes of making gelatin have been improved by making it widely available through different companies which made prices more affordable and inexpensive. Gelatin comes from the Latin word “gelatus,” which means jellied, or froze. In 1840, producers started to grind the gelatin into fine powder, or by cutting the gelatin into small or certain sized sheets which made it much more commercially useful. In 1845, a new form of gelatin came out into the market, a powdered mixture which was patented by Peter Cooper.
Gelatin is derived from collagen, which is a protein found in animal skin. It can be extracted by boiling the animal hides, bones, tissues, ligaments, and tendons after a treatment used on the bodies using acids and alkali. It is incomplete protein and deficient in amino acids. Gelatin is odorless and by itself it is tasteless. Color varies from slightly yellow to amber. When gelatin is put into a liquid, the protein will swell. When cooled the liquid the protein forms, it turns into a gel. This process is reversible. This property makes it useful in many food products.
 Gelatin is widely used throughout the world, in food product, medicines, and dietary supplement. Gelatin has many different main sources. In the United States the primary source of gelatin is pig skin. While in Europe, the primary source of gelatin is cattle skin, bones, and hooves. In a totally different perspective, Japan’s sources of gelatin comes from various seaweeds.  In some religions the source of gelatin is restricted one main source. 
Gelatin is today is used more frequently in health and dietary supplementations. It is believed to have health benefits for bones and join particularly in athletes and the elderly. Gelatin can be used to treat rheumatoid arthritis.  Studies have shown that adding gelatin to a male athlete’s healthy diet reduces the possibilities of injuries. Some studies showed correlation between the amount of gelatin injested and the amount of collagen in the bloodstream of the athletes. The study indicated that gelatin ingested by athletes might strengthen ligament and therefore help prevent injuries. While not yet studied the effect in females, Baar theorizes the effect maybe be different in females due to hormonal differences between male and female.
Gelatin is used in cosmetics. It is thought that the collagen may provide extra support to skin structures and therefore, prevent the onset of wrinkles. It is also used as a thickening agent. It is used in strengthening hair and fingernails which are primarily made up of collagen. 
The primary use of gelatin in the pharmaceutical industries is in the production of hard gelatin and soft gelatin capsules. It is also used in the coating on tablets and caplets. It is issued in liquid pharmaceutical such as cough syrup and emulsions (a thick liquid). The uses of gelatin in pharmaceuticals is the second most in the world. Food being the first known uses of gelatin.
Gelatin is in a lot of foods consumers may eat. Consumers just might not know it is in there their food.Gelatin is in foods such as Marshmallows, Mini Wheats, Starburst, and Poptarts with frosting. These are just a few examples of what contains gelatin. Photographic plate processing, dying and tanning processes also involve the use of gelatin. It can also be found in other things such as glue, medicine capsules, or playing cards. 
Jello is the most recognizable commercial product associated with gelatin. Jello was created in 1897, in LeRoy, New York. A carpenter and cough syrup manufacturer Pearle Bixby Wait, trademarked the name Jello. He and his wife added strawberry, raspberry, orange and lemon flavoring to granulated gelatin with sugar. In the 1960’s gelatin peaked within the production of the Jello companies. 
In England the most widely recognized brand name is Hartleys. In Australia the most widely recognized brand name is called Aeroplane Jelly. Today more than 400 million packages of jello are produced annually.
Scientist are doing research for alternatives for the main sources of gelatin outside of animal based. Along with an alternative source they researching a synthetic alternative. The importance of gelatin form of  non-mammalian species is increasing. As people become more knowledgeable about how gelatin is produced, they want alternative sources. There are also significant concerns about using bovine sources in the gelatin production due to the potential for contamination with  BSE (Bovine Spongiform Encephalopathy).
Gelatin goes back to ancient times and continues to be a widely used product throughout the world, both in foods and health related uses. Studies have shown potential health benefits of gelatin and research continues in this area. Pharmaceutical companies are using gelatin in researching new ways to deliver the highly sophisticated molecules that developed today. Although, historically, it is derived from animals sources, current research is seeking commercial viable alternative non-animals sources for gelatin.