Study of antinihilist literature in Russia in the second half of the 19th century History of foreign literatures in Chinese language in the second half of the twentieth century History of Chinese historiography in the second half of 20th century Philosophical thought in Russia in the 2nd half of the 20th century The development of Marxism in western countries in the second half of the 20th century Philosophical thought in Russia in the second half of the twentieth century : The history of Chinese historiography in the second half of 20th century The development of Marxism in the Soviet Union and Eastern Europe in the second half of the 20th century Study of American southern culture in the first half of 20th century