Historical Commission - As introduced, vacates and reconstitutes commission; reduces number of members on commission appointed by the governor from 24 to 15; removes governor as an ex officio member of the commission; increases from one to seven the number of appointees who must be a member of a racial minority; increases from three to eight the number of appointees who must have an academic background in history or historic preservation; revises evidentiary standard to obtain a waiver from the commission from clear and convincing to preponderance of the evidence. - Amends TCA Title 4.