2012 in Southern California: A year in review (SLIDESHOW)

In celebration of the departure of 2012, and the arrival of 2013, we've reflected upon and aggregated all the tweets, photos, and links of this year's top stories in Southern California, the state, and the nation.

The presidential election, the space shuttle Endeavor's parade through Los Angeles, and the shootings at Sandy Hook Elementary in Connecticut were some of the most important stories in 2012. Were there any stories that we missed? Which stories do you feel had the most effect on Southern California?

We shared some of our most memorable stories as part of our "Looking back, Looking ahead" collection. See them here.