This four-week class will cover radical new developments in Jewish thought from the 17th through the 20th century.March 4 Despair and Hope: Messianism and HassidismMarch 11 The Jews and Modernity: Haskalah and Reform JudaismMarch 18 The Promise of Socialism: Bundism and Secular YiddishismMarch 25 Jewish Nationalism and Its Challenges: Zionism, Anti-Zionism, and Post-Zionism