<human>:  When did the Syrian Civil War start?
<bot>: The Syrian Civil War began in 2011, but it was preceded by the Syrian Revolution in 2011. The Syrian Revolution began in March 2011 when thousands of Syrians took to the streets to protest against the regime of Bashar al-Assad. The protests were met with violent repression by the Syrian military and government, leading to a civil war. The conflict has resulted in over 300,000 deaths and millions of refugees.