Timeline: Unrest in Syria

Published On: Dec 24 2013 03:19:21 AM CST   Updated On: Sep 01 2013 08:25:25 AM CDT

Two years after the first anti-government protests, the conflict in Syria rages on. Learn about the major events in the country's tumultuous uprising.

John Kerry
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Floyd Yarmuth/CNN

Sept. 1, 2013: Secretary of State John Kerry says blood and hair samples collected from Damascus by first responders and tested by the U.S. have tested positive for sarin. Kerry argued the evidence strengthens President Barack Obama's call for military strikes on Syria.

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