Sino-Soviet split
Zhivkov ultimately survived the Sino-Soviet split, Khrushchev's fall in October 1964, an attempted Stalinist-Maoist "coup d’état" in 1965, his daughter Lyudmila Zhivkova's death in 1981, Brezhnev's death in 1982, and Mikhail Gorbachev's post-1985 reforms.