"Nerve terminals release chemicals" is the postulate put foh by:

Dale's principle~"A neuron secretes the same neurotransmitter at all its axon terminals." William Withering is credited with the discovery of digitalis. Gerhard Domagk, is credited with the discovery of the first commercially available antibiotic (protonsil), for which he received the 1939 Nobel prize in physiology or medicine. Otto Loewi has been referred to as the "father of neuroscience". he is credited with the discovery of acetyl choline. He was awarded with Nobel Prize in physiology or medicine.