In that vein, Mao Zedong Thought, Mao Zedong's updating and adaptation of Marxism–Leninism to Chinese conditions in which revolutionary praxis is primary and ideological orthodoxy is secondary, represents urban Marxism–Leninism adapted to pre-industrial China. The claim that Mao had adapted Marxism–Leninism to Chinese conditions evolved into the idea that he had updated it in a fundamental way applying to the world as a whole. Consequently, Mao Zedong Thought became the official state ideology of the People's Republic of China as well as the ideological basis of communist parties around the world which sympathised with China. In the late 1970s, the Peruvian communist party Shining Path developed and synthesized Mao Zedong Thought into Marxism–Leninism–Maoism, a contemporary variety of Marxism–Leninism that is a supposed higher level of Marxism–Leninism that can be applied universally. Following the Sino-Albanian split of the 1970s, a small portion of Marxist–Leninists began to downplay or repudiate the role of Mao in the Marxist–Leninist international movement in favour of the Albanian Labor Party and a stricter adherence to Stalin. The Sino-Albanian split was caused by Albania's rejection of China's "Realpolitik" of Sino–American rapprochement, specifically the 1972 Mao–Nixon meeting which the anti-revisionist Albanian Labor Party perceived as an ideological betrayal of Mao's own Three Worlds Theory that excluded such political rapprochement with the West. To the Albanian Marxist–Leninists, the Chinese dealings with the United States indicated Mao's lessened, practical commitments to ideological orthodoxy and proletarian internationalism. In response to Mao's apparently unorthodox deviations, Enver Hoxha, head of the Albanian Labor Party, theorised anti-revisionist Marxism–Leninism, referred to as Hoxhaism, that retained orthodox Marxism–Leninism when compared to the ideology of the post-Stalin Soviet Union. In North Korea, Marxism–Leninism was officially superseded in 1977 by "Juche". However, the government is still sometimes referred to as Marxist–Leninist, or more commonly as Stalinist, due to its political and economic structure. In the other four existing Marxist–Leninist socialist states, namely China, Cuba, Laos and Vietnam, the ruling parties hold Marxism–Leninism as their official ideology, although they give it different interpretations in terms of practical policy. Marxism–Leninism remains the ideology of mostly anti-revisionist Stalinist, Maoist and Hoxhaist as well as some de-Stalinised or reformed non-ruling communist parties worldwide.