do you mean that the worst mistake was women protesting to get the vote? or giving the women the vote was the worst mistake? or that the Founding Fathers didn't take women into account as they formed the nation, and so women were in a position where they fought for the vote?
Abigail Adams told her husband something about remembering the ladies... here is a quote from her:
"If particular care and attention is not paid to the ladies, we are determined to foment a rebellion, and will not hold ourselves bound by any laws in which we have no voice or representation."
just wondering what you mean--thanks!