September 21st: Birthday of Ali Mohsen Al-Ahmer, who also announces his support for the youth revolution against the former president Saleh on March 21st, 2011.
March 21st, 1942: The birthday of former president Ali Abdullah Saleh.
April 21st, 1980: Ali Nasser Mohammed is announced President of south Yemen and Abdul Fattah Ismail, the Socialist Party secretary, is deported to Moscow.
May 21st, 1994: Yemeni Vice President Ali Salim al-Beidh announces the secession of the South from the North, followed by a civil war.
January 21st, 2012: Yemeni Parliament issues immunity for former president Saleh.
February 21st, 2012: Abd Rabbo Mansour Hadi is elected President of Yemen.
January 21, 2014: Assassination member of the Preparatory Committee for National Dialogue, Professor Ahmad Sharaf.
January 21st, 2014: Salafis are deported from Dammaj after the Intergovernmental Agreement.
June 21, 2014: Bloody events occur in al-Garaf because of security forces’ attempt to control the headquarters of Ansar Allah in Sana’a.
September 21st, 2014: Houthis enter Sana’a and declare a national holiday for them.
September 21, 2014: Signing of the Partnership and Peace Agreement.
September 21, 2014: Escape and disappearance of Ali Mohsen al-Ahmar.
January 21, 2115 President Hadi and Prime Minister Khalid Bahah resigned from power.
February 21st, 2015: Resigned president Abed Rabbo Mansour Hadi escapes to Aden.