Who was the leader? in the brown's raid

Robert E. Lee

Explanation:

John brown’s

Explanation:

On the evening of October 16, 1859 John Brown, a staunch abolitionist, and a group of his supporters left their farmhouse hide-out en route to Harpers Ferry. Descending upon the town in the early hours of October 17th, Brown and his men captured prominent citizens and seized the federal armory and arsenal.

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.