June 3, 2011 - Opposition forces launch missiles at the presidential palace, injuring President Saleh and killing several others.
June 4, 2011 - Vice President Abdurabu Mansur Hadi is left in charge while President Saleh travels to Saudi Arabia to undergo medical treatment.
June 6, 2011 - It is revealed that President Saleh is being treated for burns over 40% of his body and a collapsed lung.
September 2, 2011 - Approximately two million people demonstrate across Yemen, demanding that the military remove President Ali Abdullah Saleh from power.
September 23, 2011 - President Saleh returns to Yemen, after more than three months of medical treatment in Saudi Arabia.
September 30, 2011 - Anwar al-Awlaki, spokesman for al-Qaeda in the Arabian Peninsula, is killed by a CIA drone strike eight kilometers from the town of Khashef in the Province of Jawf.
November 23, 2011 - President Saleh signs an agreement in Saudi Arabia transferring his executive powers to Yemen's vice-president Abdurabu Mansur Hadi, effectively ending his rule. He is allowed to retain the title of president for 90 days.
January 21, 2012 - Yemen's parliament approves a controversial law that ensures Saleh complete immunity from prosecution. In return, Saleh will step down from power next month.
February 21, 2012 - Yemen holds presidential elections to replace President Ali Abdullah Saleh. There is only one candidate on the ballot, Vice President Abdurabu Mansur Hadi, the acting president since November 2011. Hadi receives 99.8% of the 6.6 million votes cast.
February 25, 2012 - Abdurabu Mansur Hadi is sworn in as president of Yemen.
February 27, 2012 - The official inauguration of Abdurabu Mansur Hadi takes place.
February 29, 2012 - A spokesman for former President Saleh's political party denies rumors that Saleh is planning to leave the country and settle in Ethiopia. Tens of thousands of people have marched near Saleh's home calling for his prosecution and demanding he leave the country over concerns that his presence will undermine the new president.
May 21, 2012 - A suicide bomber attack in Yemen kills over 100 Yemeni troops and wounds more than 200.
May 23, 2012 - Donor countries led by Saudi Arabia and the United Kingdom calling themselves the "Friends of Yemen" pledge more than $4 billion in aid.
January 24, 2013 - The Yemeni government confirms that Saeed al-Shahri, second in command of al Qaeda in the Arabian Peninsula, has died after being wounded on November 28, 2012.
August 7, 2013 - According to a spokesman for the prime minister, Yemen foils an al Qaeda plot to capture oil and gas facilities and seize two key southern ports.