The Assembly, therefore, upon a petition from inhabitants inveighing against this custom enacted a prohibitory law in 1725. This law provided that no minister, pastor or magistrate or other person whatsover who according to the laws of that province usually joined people in marriage should upon any pretence whatever join in marriage any Negro with any white person on the penalty of one hundred pounds. And it was further enacted that if any white man or woman should cohabit or dwell with any Negro under pretense of being married, such white man or woman should be put out of service as above directed until they come to the age of thirty-one years; and if any free Negro man or woman should intermarry with a white man or woman, such Negro should become a slave during life to be sold by order of the justice of the quarter sessions of the respective county; and if any free Negro man or woman should commit fornication or adultery with any white man or woman, such Negro or Negroes should be sold as a servant for seven years and the white man or woman should be punished as the law directs in cases of adultery or fornication.[474] This law seemed to have very little effect on the miscegenation of the races in certain parts. In Chester County, according to the records of 1780, mulattoes constituted one fifth of the Negro population.[475] Furthermore, that very year when the State of Pennsylvania had grown sufficiently liberal to provide for gradual emancipation the law against the mingling of the races was repealed. Mixed marriages thereafter became common as the white and the blacks in the light of the American Revolution realized liberty in its full meaning. Thomas Branagan said: "There are many, very many blacks who ... begin to feel themselves consequential, ... will not be satisfied unless they get white women for wives, and are likewise exceedingly impertinent to white people in low circumstances.... I solemnly swear, I have seen more white women married to, and deluded through the arts of seduction by negroes in one year in Philadelphia, than for eight years I was visiting (West Indies and the Southern States). I know a black man who seduced a young white girl ... who soon after married him, and died with a broken heart. On her death he said that he would not disgrace himself to have a negro wife and acted accordingly, for he soon after married a white woman. ... There are perhaps hundreds of white women thus fascinated by black men in this city, and there are thousands of black children by them at present."[476]