What happened December 2012 AD

Although signed to a three-year contract, Cruyff's contract was terminated December 2012 after just nine months with the club. Guadalajara said that other members of the team's coaching staff would likely not be terminated.

In December 2012, Samsung announced that it had acquired the privately held storage software vendor NVELO, Inc., based in Santa Clara, California. NVELO will become part of Samsung's R&D operations, and will focus on software for intelligently managing and optimizing next-generation Samsung SSD storage subsystems for consumer and enterprise computing platforms.

In December 2012, he bought all the shares of the second division team Estudiantes Tecos.

In December 2012, Obama named Biden to head the Gun Violence Task Force, created to address the causes of gun violence in the United States in the aftermath of the Sandy Hook Elementary School shooting.

Oculus announced that the "dev kit" version of the Oculus Rift would be given as a reward to backers who pledged $300 or more on Kickstarter, with an expected shipping date set of December 2012 (though they did not actually ship until March 2013).

In December 2012, the chain faced allegations that some of its suppliers injected antiviral drugs and growth hormones into poultry in ways that violated food safety regulations. This resulted in the chain severing its relationship with 100 suppliers, and agreeing to "actively co-operate" with a government investigation into its use of antibiotics. KFC China sales in January 2013 were down 41 percent against the previous year.

On 3 December 2012, St James's Palace announced that the Duchess was pregnant with her first child. The announcement was made earlier in the pregnancy than is usual as she had been admitted to King Edward VII's Hospital suffering from hyperemesis gravidarum, a severe form of morning sickness. She remained in the hospital for three days.

In December 2012, the chain was criticized in China when it was discovered that a number of KFC suppliers had been using growth hormones and an excessive amount of antibiotics on its poultry in ways that violated Chinese law. And admitted by Yum! CEO David Novak, this scandal had a strong impact on store sales.

On 4 December 2012, after scoring in a 4–1 win against Ajax, Kaká became the top Brazilian goalscorer in Champions League history, with 28 goals.

A double scored on 9 December against Real Betis saw Messi break two longstanding records: he surpassed César Rodríguez's record of 190 league goals, becoming Barcelona's all-time top scorer in La Liga, and Gerd Müller's record of most goals scored in a calendar year, overtaking his 85 goals scored in 1972 for Bayern Munich and West Germany. Messi sent Müller a number 10 Barcelona shirt, signed "with respect and admiration", after breaking his 40-year record. At the close of the year, Messi had scored a record 91 goals in all competitions for Barcelona and Argentina.

On December 5 against New Orleans, Bryant became the youngest player (34 years and 104 days) in league history to score 30,000 points, joining Hall of Famers Chamberlain, Jordan, Kareem Abdul-Jabbar, and Karl Malone as one of five players to reach that milestone.

The Sandy Hook Elementary School shooting occurred on December 14, 2012, in Newtown, Connecticut, United States, when 20-year-old Adam Lanza shot and killed 26 people, including 20 children between six and seven years old, and six adult staff members. Before driving to the school, he shot and killed his mother at their Newtown home. As first responders arrived at the school, Lanza committed suicide by shooting himself in the head.

In December 2012, according to the Bloomberg Billionaires Index, Carlos Slim Helú remained the world's richest person with an estimated net worth of US$75.5 billion.