According to Canaday, "coverture was diminished ... in the 1970s, as part of a broader feminist revolution in law that further weakened the principle that a husband owned a wife's labor (including her person)... The regime of coverture ... was coming undone the mid-20th century". In 1966, the U.S. Supreme Court said "the institution of coverture is ... obsolete" even while acknowledging coverture's existence in 1–11 states. In a separate opinion in the same case, Hugo Black and two others of the nine justices said the "fiction that the husband and wife are one... in reality ... that though the husband and wife are one, the one is the husband...[,] rested on ... a ... notion that a married woman, being a female, is without capacity to make her own contracts and do her own business", a notion that Black "had supposed is ... completely discredited". Black described modern (as of 1966) coverture as an "archaic remnant of a primitive caste system". Canaday wrote, "the application of equal protection law to marital relations finally eviscerated the law of coverture" and "coverture unraveled with accelerating speed the late 20th century". "Coverture's demise blunted (even if it did not eliminate) male privilege within marriage", according to Canaday.