There are many different places and people who discovered glucose 'first.' Because of how complex our blood is the discovery of blood sugar and how it effects our bodies has stretched to many people and places due to what they discovered and what conclusion they drew from that.

    In 1747 glucose was found by Andreas Marggraf. The name glucose was created in 1838 by Jean Dumas, from the Greek word glycos ( which means; sugar or sweet ), and the scientific structure was discovered by Emil Fischer. Another discovering of blood sugar was found in the late 18th century, by many physicians, including Rober Wyatt in 1774 and Matthew Dobson in 1776. They found glycosuria, which is found in our urine, and hyperglycemia, which is found in our blood.

     In ancient times and medieval ages diabetes was usually a death sentence, there was never a good outcome when treated. Sushruta, an Indian healer, in the 6th century BCE identified diabetes and classified it as “Madhumeha”, which came from the word 'madhu' means honey and combined a term that means 'sweet urine'. The ancient Indians tested for diabetes by looking at whether ants were attracted to a person's urine. 

     Diabetes mellitus has been known since antiquity. Descriptions have been found in the Egyptian papyri, in ancient Indian and Chinese medical literature, as well as, in the work of ancient Greek and Arab physicians. 

    From the 8th century onwards, physicians observed the tendency of diabetic patients to develop skin infections such as furuncles, rodent ulcers and troubles of the eyesight. In 11th century, a physician named Arabo-islamic described diabetes in his textbook, he mentioned gangrene and sexual dysfunction as its complication. Years later, Moises Maimonides described in detail diabetes, including the symptoms of acidosis.