What Are the Most Important Milestones in Diabetes History?
The discovery of insulin in 1922 tops the list. It turned type 1 diabetes from a fatal disease into a treatable one. Nature’s Milestones in Diabetes collection picks 24 turning points from the century that followed. They include the HbA1c blood test (1971), synthetic human insulin (first made in 1979 and FDA-approved about 3 years later), the first fast-acting insulin analogues (1988), the DCCT trial showing that tight glucose control prevents complications (1993), the first real-life test of an artificial pancreas (2014), GLP-1 drugs (2017), and 2019 evidence that SGLT2 inhibitors and GLP-1 drugs protect the heart and kidneys. The collection is an editorial timeline from Nature, not a study.
Dr. Kumar’s Take
Each milestone on this list came from years of research and many failed experiments. Most of these advances are recent. A person with type 1 diabetes today can wear a sensor and pump that adjust insulin automatically, which would have seemed impossible a few decades ago. These advances only matter if people can get them. The milestone still missing is making diabetes treatment affordable and available to every patient, whatever their income.
Key Findings
The timeline runs from 1922 to 2020, and the pace picks up over time. After insulin was discovered in 1922, its chemistry was worked out over the next 50 years. Frederick Sanger sequenced it and won the 1958 Nobel Prize in Chemistry. Several labs made it chemically in 1963, and Dorothy Hodgkin’s team mapped its 3D structure in 1969. The HbA1c test arrived in 1971. Synthetic human insulin followed in 1979, and faster-absorbed insulin analogues in 1988.
From the 1990s on, the milestones shift toward preventing complications and new treatments: the DCCT trial (1993), bariatric surgery for type 2 diabetes (1995), diet and exercise to prevent type 2 diabetes in the Da Qing study (1997), the artificial pancreas (2014), incretin drugs such as GLP-1 receptor agonists (2017), and heart and kidney benefits from SGLT2 inhibitors and GLP-1 drugs (2019).
Many milestones are about understanding the disease rather than treating it: the immune attack on insulin-making beta cells in type 1 diabetes, the genes behind both types, and how inflammation drives insulin resistance in type 2 diabetes.
Brief Summary
Nature published Milestones in Diabetes in June 2021 to mark 100 years since the discovery of insulin. It picks 24 key discoveries from 1922 to 2020, with other notable events in between. It covers both type 1 and type 2 diabetes: insulin itself, disease mechanisms, genetics, complications, new drugs, surgery, lifestyle prevention, cell therapies and technology.
Diabetes itself has been described for about 3,500 years. An Egyptian papyrus from around 1550 BCE described excessive urination, and ancient Indian physicians noted sweet urine. That earlier history falls outside this collection.
Study Design
This is not a study. It is an editorial collection. Nature’s editors chose the milestones and wrote a short summary of each, with links to the original research papers, plus videos and a foreword.
Results You Can Use
The timeline shows diabetes care moving from a fatal diagnosis to a manageable condition, one step at a time. In my view, many of the advances that matter most in daily life are the ones that help people monitor and manage their own diabetes, from the HbA1c test to the artificial pancreas.
Why This Matters For Health And Performance
Understanding diabetes milestones helps patients and providers appreciate how current treatments developed and what future innovations might emerge. This historical perspective also highlights how recent most advances are, a reminder that continued research investment is essential for further progress. The timeline demonstrates that breakthrough treatments often take decades to develop, supporting sustained research funding and international collaboration.
How to Apply These Findings in Daily Life
- Appreciate the historical development of diabetes treatments you use daily
- Understand that current technologies represent decades of scientific progress
- Support continued diabetes research and innovation funding
- Learn about emerging technologies that might improve your diabetes management
- Recognize that treatment advances require both scientific discovery and practical implementation
- Advocate for policies that ensure new diabetes technologies remain accessible
- Stay informed about clinical trials for next-generation diabetes treatments
Limitations To Keep In Mind
This historical analysis may not capture all regional variations in diabetes treatment development or fully represent contributions from non-Western medical traditions. The focus on major milestones may oversimplify the gradual nature of medical progress and the many incremental advances that enabled breakthrough discoveries. Additionally, the emphasis on technological solutions may not fully address social and economic barriers to diabetes care access.
Related Studies
- The Internal Secretion of the Pancreas
- History of Insulin
- Frederick Banting: Discoverer of Insulin
- Episode 24: The Discovery of Insulin
FAQs
What was the most important diabetes milestone?
The discovery of insulin in 1922 was the most transformative milestone, converting diabetes from a fatal disease to a manageable condition. This breakthrough enabled all subsequent advances in diabetes care and saved millions of lives.
How has diabetes technology changed in recent decades?
Continuous glucose monitors, smarter insulin pumps, connected insulin pens and artificial pancreas systems have spread over the past two decades. In 2014, a study showed for the first time that a closed-loop system worked in adults and adolescents with type 1 diabetes going about their normal lives. These systems read glucose and adjust insulin automatically.
What diabetes milestones might come next?
Emerging developments include more fully automated artificial pancreas systems, glucose-responsive insulin formulations, beta cell replacement therapies, and artificial intelligence-powered diabetes management platforms that could further improve outcomes and quality of life.
Conclusion
Diabetes milestones demonstrate the power of sustained scientific research and innovation to transform medical care from helpless observation to sophisticated management. Each breakthrough built upon previous discoveries, creating the comprehensive diabetes care system available today. Future milestones will matter most if they reach every patient at a price they can afford.
