Analysis of information sources in references of the Wikipedia article "Cathode" in Simple English language version.
When Benjamin Franklin was studying charges, the structure of an atom and atomic particles were unknown. Hence he assumed the point of charge accumulation as positive and the point which is deficient of charges as negative. Therefore, the charge is said to flow from positive to negative. This is called conventional current.
Electrons are negatively charged particles and are attracted towards the positive charge.
