Identify ALL the known characteristics of diabetes by the year 1900?

By the year 1900, the understanding of diabetes was still in its early stages, but several key characteristics of the disease had been identified:

1. High Blood Sugar: It was known that diabetes was associated with an excess of sugar in the blood and urine. This was often tested by tasting the urine for sweetness.

2. Frequent Urination and Thirst: People with diabetes were observed to urinate frequently and have an excessive thirst. These symptoms were often the first signs of the disease.

3. Weight Loss: Despite often having an increased appetite, people with diabetes were known to lose weight.

4. Fatigue: People with diabetes were often tired and lacked energy.

5. Slow Healing: Wounds and infections were observed to heal slowly in people with diabetes.

6. Blurred Vision: Some people with diabetes were known to experience blurred vision.

7. Coma and Death: If left untreated, diabetes could lead to coma and death. This was often due to a condition known as diabetic ketoacidosis, which was not well understood at the time.

It's important to note that the understanding of diabetes in 1900 was very basic compared to today. The role of insulin in regulating blood sugar was not discovered until the 1920s, and many of the complications associated with diabetes, such as heart disease and kidney damage, were not yet known.