GLOBAL CONNECTIONS: the Near/Middle East
June 1969: President Salim Rubayi Ali assumes power in Southern Yemen.

Ali succeeds Qahtan al-Shabi, who is overthrown by the Marxist National Liberation Front. The following year the country is renamed the People's Democratic Republic of Yemen, and during Ali's rule, most of the economy is placed under government control.

WWW Timeline of Yemen: 1968-1986
http://www.bartleby.com/67/3893.html

Historical timeline of Yemen