Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page 1977:

"
  • July 22 – The purged Chinese Communist leader Deng Xiaoping is restored to power nine months after the "Gang of Four" was expelled from power in a coup d'état.
  • July 27 – The Soviet Politburo orders Boris Yeltsin to demolish the Ipatiev House, where Tsar Nicholas II of Russia and his family were shot in 1918. Yeltsin later refers to this as a barbarian act.[citation needed]
  • July 30 – Left-wing German terrorists Susanne Albrecht,[5] Brigitte Mohnhaupt and Christian Klar assassinate Jürgen Ponto,[6] chairman of the Dresdner Bank in Oberursel, West Germany.