Elizabeth Cady Stanton with two of her seven children in 1848, the year she became the lead author of the Declaration of Sentiments. Pay inequality was a major focus of this extraordinary document, which stated:
The history of mankind is a history of repeated injuries and usurpations on the part of man toward woman, having in direct object the establishment of an absolute tyranny over her. To prove this, let facts be submitted to a candid world. … He has monopolized nearly all the profitable employments, and from those she is permitted to follow, she receives but a scanty remuneration. … He closes against her all the avenues to wealth and distinction, which he considers most honorable to himself.