Just think...

[Cerridwen]

5. Section 2.

Representatives shall be apportioned among the several States according to their respective numbers, counting the whole number of persons in each State, excluding Indians not taxed. But when the right to vote at any election for the choice of electors for President and Vice-President of the United States, Representatives in Congress, the Executive and Judicial officers of a State, or the members of the Legislature thereof, is denied to any of the male inhabitants of such State, being twenty-one years of age,* and citizens of the United States, or in any way abridged, except for participation in rebellion, or other crime, the basis of representation therein shall be reduced in the proportion which the number of such male citizens shall bear to the whole number of male citizens twenty-one years of age in such State.

That section was used in many states to rescind the franchise that was slowly expanding for women. It was the first use of the word "male" in any piece of the constitution and it was used to justify discrimination against women just as surely as defining slaves as "3/5"ths human would be used against blacks; regardless of their "free" or "slave" state.

I believe this is also the amendment that has been used to justify the "personhood" of the legal contrivance known as "corporation."