Comstock died in 1915, and the Comstock Act, the notorious anti-obscenity law used to indict the Planned Parenthood founder Margaret Sanger, ban books by D.H. Lawrence and arrest people by the thousands, turned 150 last month. Had this anniversary fallen five or 10 years ago, it barely would have been worth noting, except perhaps to marvel at how far we’d come from an era when a fanatical censor like Comstock wielded national political power. “The Comstock Act represented, in its day, the pinnacle of Victorian prudery, the high-water mark of a strict and rigid formal code,” wrote the law professors Joanna Grossman and Lawrence Friedman. Until very recently, it seemed a relic.