What marked the end of tasting urine as a method for glucose testing?

The end of tasting urine as a method for glucose testing was primarily marked by the start of chemical testing in 1694. This shift represented a significant advancement in medical diagnostics. Prior to this, tasting urine was a common practice for determining various conditions, including the presence of glucose, which indicated diabetes. However, the introduction of chemical testing allowed for more accurate and reliable detection of glucose and other substances in urine without the subjective nature of tasting. This transition was crucial in the evolution of urinalysis, as it set the stage for more sophisticated laboratory techniques and improved patient care.

The other options refer to important historical developments, but they did not directly lead to the cessation of tasting urine. Color charts and the invention of the microscope contributed to advancements in diagnostic techniques, while "Uroscopy" focused more on the examination of urine's physical characteristics rather than specific chemical analysis.