Not a “first” but a “unique” feature of the state:

According to the North American Vexillological Association’s 2001 survey, Wisconsin places 65th out of 72…
But it could be worse:
One flag drew far more attention than all others did. NAVA members and the public both gave the new Georgia flag the lowest score—2.4 points—by the largest margin of any flag. Some even asked to give it negative points. They disparaged Georgia’s flag as “a scalawag”, “desolating”, “simply awful”, “hideous”, and “by far the ugliest”. Its complex design violates all the principles of good flag design, incorporating a seal, lettering, and a series of miniature historic flags (in incorrect order). One person derided it as “Five Flags Under Georgia”.
Which, in 2001-03 looked like:
