1. This is a fee, mostly by credit card companies, paid vearly, to own and use one of their credit care

Annual fee?

Explanation:

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.

answer; the sons of liberty;