The largest area of Lithuanian territory became part of the Russian Empire. After the unsuccessful uprisings in 1831 and 1863, the Tsarist authorities implemented a number of Russification policies. In 1840 the Third Statute of Lithuania was abolished. They banned the Lithuanian press, closed cultural and educational institutions and made Lithuania part of a new administrative region called Northwestern Krai. The Russification failed, owing to an extensive network of Lithuanian book smugglers and secret Lithuanian homeschooling.