Labels:text | font | screenshot | document | number OCR: CHRONOLOGY MARCH 18, 1949 Western alles sign NATO treaty MAY 14, 1955 Eastern bloc signs Warsaw Pact AUGUST 31, 1961 Berlin Wall erected MARCH 11, 1985 Gorbachev made Soviet leader DECEMBER 7, 1988 Gorbachev cuts arms JUNE 5, 1989 Solidarity wins Polish elections SEPTEMBER 11, 1989 Hungary opens Austrian border OCTOBER 23, 1989 Multi-party system in Hungary NOVEMBER 9, 1989 Berlin Wall opens NOVEMBER 28, 1989 Czech gout. to share power DECEMBER 25, 1989 Ceausescus executed DECEMBER 25, 1991 U.S.S.R. dissolves
