AdvertisementGorbachev Adviser's Diary Entry The Day The Wall FellNovember 08, 2009facebookEmail"The Berlin Wall has collapsed. This entire era in the history of the socialist system is over," Chernyaev wrote. "Today we received messages about the retirement of [China's] Deng Xiaopeng and [Bulgaria's] Todor Zhivkov. Only our 'best friends' Castro, [Romania's Nicolae] Ceausescu, and [North Korea's] Kim Il Sung are still around — people who hate our guts."