Earthquake Devastates Haiti

On Jan. 12, a massive 7.0 earthquake struck Haiti, destroying the capitol city of Port-au-Prince and killing 300,000 people. (credit: Frederic Dupoux/Getty Images)

John and Elizabeth Edwards Separate

On Jan. 21, former vice-presidential candidate John Edwards and his wife, Elizabeth, filed for separation. The former North Carolina senator had fathered a child through an extramarital affair with campaign worker Rielle Hunter. (Photo by Amy Sussman/Getty Images for Discovery)

The iPad Debuts

On Jan. 27, Steve Jobs unveiled the iPad, Apple's first tablet device. (Photo by Justin Sullivan/Getty Images)

Toyota Troubles

After several reports of uncontrolled acceleration in some of their most popular models, Toyota announced a recall on Jan. 28. They blamed the problem on the design of their pedals. (credit: Kazuhiro Nogi/AFP/Getty Images)

Tiger Woods Apologizes

On Feb. 19, Tiger Woods offered an apology for disappointing his fans and wife after numerous women went public claiming they had affairs with the superstar. (Photo by Lori Moffett-Pool/Getty Images)

8.8-Magnitude Quake Hits Chile

On Feb. 27, a devastating 8.8-magnitude quake hit Chile, killing 497 people. (credit: Joe Raedle/Getty Images)

Body Scanners Land At O'Hare

On Mar. 15, full body scanners began being used at Chicago's O'Hare airport. The scanners set off a debate about privacy and security. (credit: Scott Olson/Getty Images)

Obama Signs Health Care Reform Bill

On Mar. 23, President Barack Obama signed his signature health care reform bill into law after a year-long, bitter, partisan debate. (credit: Saul Loeb/AFP/Getty Images)

2010 Census Begins

On Apr. 1, the U.S. government began conducting the census. (credit: Chip Comodevilla/Getty Images)

Deepwater Horizon Explodes

On Apr. 20, BP's Deepwater Horizon offshore drilling rig exploded, causing massive environmental damage. Oil would spill into the gulf for months. (credit: Win McNamee/Getty Images)

Arizona's Controversial Immigration Law

On Apr. 23, Arizona Governor Jan Brewer signd a controversial bill empowering law enforcement to stop people suspected of being illegal aliens. (credit: John Moore/Getty Images)

Times Square Bombing Attempt

On May 1, radicalized American citizen Faisal Shahzad attempted to blow up a car bomb in New York City's Times Square. (credit: Jewel Samad/AFP/Getty Images)

Joran van der Sloot Arrested

On June 3, Joran van der Sloot was arrested in Peru, accused of killing Stephany Flores Ramírez. Van der Sloot was long suspected of killing Natalee Holloway. (credit: Marcel Antonisse/AFP/Getty Images)

Gen. McChrystal Resigns

On June 23, Gen. Stanley McChrystal, commander of U.S. troops in Afghanistan, resigned after his disparaging remarks about Vice President Biden and other administration officials appeared in Rolling Stone magazine. (credit: Brendan Smialowski/Getty Images)

Duck Boat Accident

(On July 7, two passengers were killed after a duckboat crashed into a barge in the Delaware River)

Obama Signs Financial Reform Bill

On July 21, President Barack Obama signed a law intended to prevent another massive meltdown of the financial system. (Photo by Chip Somodevilla/Getty Images)

Chelsea Clinton Marries

On July 31, Chelsea Clinton married Marc Mezvinsky. (credit: Barbara Kinney via Getty Images)

Elena Kagan Sworn In

On Aug. 7, Elena Kagan was sworn in as the 112th justice of the U.S. Supreme Court. She's the court's 4th female justice. (credit: J. Scott Applewhite-Pool/Getty Images)

Ted Stevens Killed

On Aug. 9, former Alaska Senator Ted Stevens was killed in a small plane crash. (credit: Win McNamee/Getty Images)

Obama Sounds Off On 'Ground Zero' Mosque

President Obama weighed in on the debate on plans to build an Islamic community center near New York City's Ground Zero. The president noted on Aug. 13, 2010, the Constutional right for the mosque and community center to be built in that location. (credit: Don Emmert/AFP/Getty Images)

Hundreds Of Millions Of Eggs Recalled

One of the nation's largest egg distributor, Wright County Egg in Iowa, announced on Aug. 13, 2010, a recall of 380 million eggs linked to an outbreak of salmonella poisoning. (credit: Alex Wong/Getty Images)

Bedbugs Make Way Across The Nation

Pest control company Terminix revealed on Aug. 25, 2010, a list of the 15 most bedbug-infested cities in the United States. Topping the list were New York City, Philadelphia, and Detroit. (credit: Brian Kersey/Getty Images)

Obama Declares End To Combat Missions In Iraq

In his second nationally-televised Oval Office address on Aug. 31, 2010, President Obama lauded the end of "Operation Iraqi Freedom," more than seven years after the war was launched by previous President George W. Bush. (credit: Nicholas Kamm/AFP/Getty Images)

Florida Pastor Calls Of Quran-Burning

The Rev. Terry Jones announced on Sept. 9, 2010, that he no longer plans to burn copies of the Quran on the 9th anniversary of the Sept. 11, 2001, terror attacks. The Florida pastor said he changed mind after meeting with a New York imam. (credit: Joe Raedle/Getty Images)

Kraft Foods Plant Murders

Yvonne Hiller returns to her former job at the Kraft Foods Plant in Philadelphia and allegedly opens fire on September 9.

Iran Releases American Sarah Shourd

Iran released American hiker Sarah Shourd on Sept. 14, 2010, after keeping her detained in prison for 14 months. Her fiance Shane Bauer and friend Josh Fattal remain imprisoned in Iran. (credit: Mohammed Mahjoub/AFP/Getty Images)

Students Kills Self After Sex Encounter Broadcast

Rutgers University freshman Tyler Clementi committed suicide on Sept. 22, 2010, after his dorm roommate secretly used a webcam to stream Clementi's homosexual encounter on the Internet. Clementi jumped off the George Washington Bridge. (credit: Emmanuel Dunand/AFP/Getty Images)

Christine O'Donnell Releases "I'm Not A Witch" Ad

(File Photo)

In her first campaign add of the primary season, Tea Party-propelled candidate Christine O'Donnell appeared Oct. 6, 2010, in a video in which she says, "I'm not a witch." It was meant to fight rumors around her admission of dabbling in witchcraft. (credit: Jessica Kourkounis/Getty Images)

Chilean Miners Freed After Months Underground

All 33 miners trapped thousands of miles beneath the earth in Chile were finally rescued on Oct. 13, 2010, after more than two months underground. (credit: Martin Bernetti/AFP/Getty Images)

Package Bombs Found On U.S.-Bound Flights

Two package bombs headed for the United States were intercepted by authorities in Britain and Dubai that were meant to explode in-flight and to bring down the planes carrying them. The flights originated in Yemen. (credit: Karim Sahib/AFP/Getty Images)

Kensington Strangler

The 'Kensington Strangler' starts terrorizing a Philadelphia community in November.

Four Loko Drops Caffeine From Energy Drink

The manufacturers of a popular caffeinated alcohol drink announced on Nov. 16, 2010, that they will remove the caffeine from its controversial products -- just before the FDA reveals its intention to ban the Four Loko beverage. (Photo by Joe Raedle/Getty Images)

NASA Announces Discovery Of New Life Form

NASA revealed on Dec. 2, 2010, that researchers have found microorganic life on Earth that's able to survive and reproduce using arsenic.NASA says the find will impact the search for evidence of extraterrestrial life. (credit: Mark Wilson/Getty Images)

President Obama Announces Tax Deal

President Obama unveiled a compromise with Republicans to extend Bush-era tax cuts across the board for all Americans, including the wealthiest. Former President Bill Clinton urged reluctant Democrats to support Obama's plan. (credit: Alex Wong/Getty Images)

Elizabeth Edwards Succumbs To Cancer

Elizabeth Edwards, wife of former presidential candidate John Edwards, lost her battle with cancer on Dec. 7, 2010. Edwards was seen as a face of resilience and grace amid her husband's affair with a campaign videographer. (credit: Saul Loeb/AFP/Getty Images)