OIL SPILL -- April 20, 2011 at 6:20 PM ET
Gulf Oil Spill: 1 Year and 232 Stories Later
It was a year ago Wednesday that a massive oil spill began in the Gulf of Mexico with an explosion aboard the Deepwater Horizon oil rig. It took three months to seal the underwater oil gusher, and the region continues to work to recover.
Click on the image below to access a timeline in which we look back on how the NewsHour covered the story from the beginning to present day. We built the timeline using ProPublica's TimelineSetter, an open source media tool.