of Ukrainian nationalism. With growing urbanization and modernization and a cultural trend toward romantic nationalism, the Ukrainian intelligentsia committed to national rebirth and social justice emerged. The serf-turned-national-poet Taras Shevchenko (1814–1861) and political theorist Mykhailo Drahomanov (1841–1895) led the growing nationalist movement. While conditions for its development in Austrian Galicia under the Habsburgs were relatively lenient, the Russian part (known as Little Russia) faced severe restrictions, going as far as banning virtually all books from being published in Ukrainian in 1876. Ukraine joined the Industrial Revolution later than most of Western Europe due to the maintenance of serfdom until 1861. Other than near the newly discovered coal fields of the Donbas, and in some larger cities such as Odesa and Kyiv, Ukraine largely remained an agricultural and resource extraction economy. The Austrian part of Ukraine was particularly destitute, which forced hundreds of thousands of peasants into emigration, who created the backbone of an extensive Ukrainian diaspora in countries such as Canada, the United States and Brazil. Some of the Ukrainians settled in the Far East, too. According to the 1897 census, there were 223,000 ethnic Ukrainians in Siberia and 102,000 in Central Asia. An additional 1.6 million emigrated to the east in the ten years after the opening of the Trans-Siberian Railway in 1906. Far Eastern areas with an ethnic Ukrainian population became known as Green Ukraine. Ukraine plunged into turmoil with the beginning of World War I, and fighting on Ukrainian soil persisted until late 1921. Initially, the Ukrainians were split between Austria-Hungary, fighting for the Central Powers, though the vast majority served in the Imperial Russian Army, which was part of the Triple Entente, under Russia. As the Russian Empire collapsed, the conflict evolved into the Ukrainian War of Independence, with Ukrainians fighting alongside, or against, the Red, White, Black and Green armies, with the Poles, Hungarians (in Transcarpathia), and Germans also intervening at various times. An attempt to create an independent state, the left-leaning Ukrainian People's Republic (UNR), was first announced by Mykhailo Hrushevsky, but the period was plagued by an extremely unstable political and military environment. It was first deposed in a coup d'état led by Pavlo Skoropadskyi, which yielded the Ukrainian State under the German protectorate, and the attempt to restore the UNR under the Directorate ultimately failed as the Ukrainian army was regularly overrun by other forces. The short-lived West Ukrainian People's Republic and