[Publius]

The 27th Amendment was proposed in 1789 and ratified in 1992.

[RedElement]

Thanks for the precise dates. 200+ year span.

[Verginius Rufus]

So if the ERA had been ratified, it would have been the 27th amendment and the current 27th would have been the 28th.

At one point Congress did (illegally) extend the deadline, but that didn't help. Thank you, Phyllis Schlafly!