 The second period is perhaps dominated by “Soviet Marxism” and the critical reaction from other Marxists that it provoked. The repressive bureaucratic regimes which solidified in the Soviet Union and Eastern Europe repressed independent theoretical work, including scholarly editorial work on the writings of Marx and Engels. However, they also provoked a critical reaction in the form of a body of thought often called “Western Marxism”, usually said to include the work of Antonio Gramsci (1891–1937), Theodor Adorno (1903–1969), and Althusser. The later parts of this period saw the continuing development of “Critical Theory”, as well as the birth of currents such as “Analytical Marxism” whose longer term impact is uncertain.