When did psychology's history as a science begin

Initially, psychology was a part of philosophy, and much work from this period is still a basis for today's psychology. However, the beginning of psychology as a modern science is usually agreed to be around 1875, when William James was active in the US and Wilhelm Wundt in Germany - both are considered fathers of psychology.

Explanation:

The guiding prinicpial is CONSERVING the ways that we have used in the past and trying to keep on the same path we have used previously