1930s, such organizations as the League of Militant Atheists ridiculed all religions and harassed believers. The league was a "nominally independent organization established by the Communist Party to promote atheism". It published its own newspaper, and journals, sponsored lectures, and organized demonstrations that lampooned religion and promoted atheism. Anti-religious and atheistic propaganda was implemented into every portion of soviet life from schools to the media and even on to substituting rituals to replace religious ones. Though Lenin originally introduced the Gregorian calendar to the Soviets, subsequent efforts to reorganise the week to improve worker productivity saw the introduction of the Soviet calendar, which had the side-effect that a "holiday will seldom fall on Sunday". Within about a year of the revolution, the state expropriated all church property, including the churches themselves, and in the period from 1922 to 1926, 28 Russian Orthodox bishops and more than 1,200 priests were killed (a much greater number was subjected to persecution). Most seminaries were closed, and publication of religious writing was banned. A meeting of the Antireligious Commission of the Central Committee of the All-Union Communist Party (Bolsheviks) that occurred on 23 May 1929 estimated the portion of believers in the USSR at 80 percent, though this percentage may be understated to prove the successfulness of the struggle with religion. The Russian Orthodox Church, which had 54,000 parishes before World War I, was reduced to 500 by 1940. Overall, by that same year 90 percent of the churches, synagogues, and mosques that had been operating in 1917 were either forcibly closed, converted, or destroyed. Since the Soviet era, Russia, Armenia, Kazakhstan, Uzbekistan, Turkmenistan, Kyrgyzstan, Tajikistan, Belarus, Moldova, Georgia, Ukraine and Lithuania have diverse religious affiliations. Professor Niels Christian Nielsen of philosophy and religious thought of Rice University has written that the post-Soviet population in areas which were formerly predominantly Orthodox are now "nearly illiterate regarding religion", almost completely lacking the intellectual or philosophical aspects of their faith and having almost no knowledge of other faiths. In 1928, the Jewish Autonomous Oblast was established by Joseph Stalin, acting on an idea proposed by Lenin in order to give the Jewish population in Russia more personal autonomy, as reparation for antisemitism in the Russian Empire. Along with granting Jewish autonomy, Stalin also allowed Sharia law in the majority-Islamic countries of the Soviet Union. "The Soviet Government considers that the Sharia, as common law, is as