James Schlatter, a medical researcher working in the United States, discovered the sweetness of aspartame in 1965.
Jim was a scientist developing a treatment for ulcers. When he licked his finger to turn a page of his notebook, he noticed an unexpectedly sweet taste, and had the presence of mind to trace the sweetness back to a simple molecule of two amino acids.
Since that time, aspartame has become one of the most highly valued and widely used sweeteners in the world. Aspartame tastes exactly like sugar, and because it is made from two amino acids, is digested naturally.