Timeline: Unrest in Syria

Published On: Dec 24 2013 03:19:21 AM CST   Updated On: Sep 23 2014 09:32:18 AM CDT

The U.S. and several Arab nations have begun airstrikes in Syria -- the latest chapter in a bloody civil war. Learn about the major events in the country's tumultuous uprising.

Syria - August 21 2013
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Bassam Khabieh/Reuters

Aug. 21, 2013 -- Government forces are accused of a nerve gas attack in a Damascus suburb that killed large numbers of civilians as they slept and packed makeshift hospitals with hundreds of victims convulsing and gasping for breath. Assad denies any involvement.

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