Which staining technique was used to determine that neurons are distinct cells rather than an interconnected web?

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The Golgi stain was used to determine that neurons are distinct cells. This staining technique selectively stains entire neurons, including cell bodies, dendrites, and axons, allowing for the visualization of individual neurons and demonstrating that they are not interconnected in a continuous web, but rather communicate via synapses.

Which Staining Technique Was Used to Determine That Neurons Are