June 3, 2011 - More than 1,000 people have died in Syria since March, according to U.N. Secretary General Ban Ki-moon.
June 6, 2011 - Syrian state TV reports that more 120 security forces have been killed, including 82 in Jisr Al-Shugar. The government blames the deaths on "armed gangs" in the city.
June 7, 2011 - A delegation of human rights organizations and their lawyers meet with prosecutors at the International Criminal Court in the Netherlands. The group alleges that Syrian government forces have killed more than 1,168 people and injured 3,000 more since March. The International Criminal Court notes that Syria is not a party to the treaty that established the ICC. Therefore, the court has no jurisdiction over crimes committed in Syria by Syrian forces.
June 8, 2011 - The government of Turkey releases a statement , calling on Syria to stop the violence against civilians.
June 8, 2011 - France, Germany, Great Britain and Portugal submit a draft resolution to the U.N. Security Council, condemning Syria for the violence against its people.
June 12, 2011 - Syrian forces take control of the town of Jisr al Shughur. Thousands of Syrians flee to neighboring Turkey.
June 17, 2011 - Approximately, 9,600 Syrian refugees are living in four refugee camps near the Turkish border, according to the Office of the U.N. High Commissioner for Refugees.
June 18, 2011 - Syrian forces storm the town Badama, which had been providing food to Syrians fleeing violence in other towns.
June 20, 2011 - In a speech, President Bashar al Assad says that he will not negotiate with people fighting against Syrian forces. He also offers promises of reform, without any specifics.
June 24, 2011 - According to Turkish government officials, there are at least 11,739 Syrian refugees in Turkey.
August 8, 2011 - King Abdullah of Saudi Arabia rebukes Syrian President Bashar al Assad in a speech broadcast on state television. He says, "There is no justification for the bloodshed in Syria, and what is happening has nothing to do with religion or ethics. The Syrian leadership could activate comprehensive reforms quickly."
August 8, 2011 - Saudi Arabia, Kuwait and Bahrain recall their ambassadors from Syria.
August 18, 2011 - The U.S. imposes new economic sanctions on Syria, freezing Syrian government assets in the U.S., barring Americans from making new investments in the country and prohibiting any U.S. transactions relating to Syrian petroleum products, among other things.
August 22, 2011 - The U.N. High Commissioner for Refugees Navi Pillay says that more than 2,200 people have been killed in Syria since February.
September 2, 2011 - The European Union bans the import of Syrian oil.
September 23, 2011 - The European Union imposed additional sanctions against Syria, due to "the continuing brutal campaign" by the government against its own people.
November 8, 2011 - The office of the U.N. High Commissioner for Human Rights releases a statement saying that more than 3500 people have died in the Syrian unrest.
November 12, 2011 - The Arab League suspends Syria's membership, effective November 16, 2011.
December 26, 2011 - Members of an Arab League delegation arrive to look into events on the ground and whether Syria is upholding a commitment to end a brutal crackdown. The trip comes amid reports of raging violence, opposition groups say, particularly in the flashpoint city of Homs.
For Developments in Syria after 2011 -- see Syria Fast Facts
Tunisia: December 17, 2010 - Mohamed Bouazizi, a 26-year-old vegetable cart vendor, sets himself on fire in protest after police confiscate his cart. He dies on January 4, 2011.
Late December 2010-Early January 2011 - Bouazizi's act of self-immolation sparks widespread protests.
January 14, 2011 - President Zine El-Abidine Ben Ali and his family flee to Saudi Arabia.
January 15, 2011 - Parliamentary speaker Fouad Mebazaa is sworn in as interim president until new elections are held.
January 17, 2011 - Prime Minister Mohamed Ghannouchi announces the new transitional coalition government.
February 26, 2011 - According to the Interior Ministry, three people are killed in clashes between demonstrators and security forces in Tunis. At least nine people are injured and more than 100 arrested, according to the state-run news agency, TAP.
February 27, 2011 - Prime Minister Mohamed Ghannouchi resigns. Tunisia's interim president selects Al-Baji Qa'ed Al-Sebsi as the country's new prime minister.
March 7, 2011 - Tunisia's Interior Ministry announces that it is dissolving its "political police" and the entire State Security Division, according to the country's news agency, Tunis Afrique Presse.
March 9, 2011 - A Tunisian court issues a ruling dissolving the Rally for Constitutional Democracy, the party of ousted President Zine El Abidine Ben Ali.
June 20, 2011 - After a one-day trial, former president Zine El Abidine Ben Ali is convicted of corruption in absentia.
October 23, 2011 - Tunisia holds the first free elections in the country's modern history to seat the new 217-member National Constituent Assembly.
Yemen: January 28, 2011 - Protests break out in Yemen.
February 2, 2011 - Yemeni President Ali Abdullah Saleh promises concessions, including not to seek re-election in 2013.
February 21, 2011 - Amid continued protests, Saleh refuses to step down, comparing the protests to a virus spreading through the region.
February 23, 2011 - State-run news service Saba reports that Yemeni President Ali Abdullah Saleh is calling for an end to the protests and says he supports the creation of a national unity government to oversee upcoming parliamentary elections.
February 25, 2011 - Amnesty International says at least 11 people died in the day's protests, bringing the overall death toll since protests began to 27.
February 26, 2011 - Medical officials say four people died and 26 were wounded following clashes that erupted at night between anti-government protesters and security forces in southern Yemen.
February 28, 2011 - Yemen's main opposition bloc rejects President Ali Abdullah Saleh's call to form a unity government to rule until elections to replace him.
March 4, 2011 - Security forces open fire on anti-government protesters in northern Yemen, killing two people and injuring nine others, witnesses say.
March 6, 2011 - Suspected al Qaeda militants kill four Yemeni soldiers. Also, in separate incidents, two officers in the Yemeni Political Security Organization, the country's intelligence agency, are assassinated. The Yemeni government says suspected al Qaeda forces are also behind the killing of the intelligence officers.