Centuries of jurisprudence proscribing extrajudicial killings were swept aside. In 1724, the Yongzheng Emperor issued a decree proscribing Catholicism. Only by proscribing science as heretical, Langhorne believes, can humanity's safety be assured. Nichols advocated preservation of trees and natural contours, while proscribing gridiron street networks. Savage has also opposed state legislation proscribing the sale of sex toys. A major new rule proscribing MPs from changing party affiliation during a parliamentary period. Max Fisher in "The Washington Post" prescribed for "Iran", while proscribing .