It is generally believed that a one or two-year-old boy, later identified as Emile Ouamouno, died in December 2013 in the village of Méliandou, Guéckédou Prefecture, Guinea, was the index case of the Western African epidemic. Scientists have deduced that bats are involved in the spread of the virus, and, incidentally, the boy's home was in the vicinity of a large colony of Angolan free-tailed bats, according to media reports. Later the virus was transmitted to 9 more countries other than Guinea all over the World.
On 5 December 2013, the People's Bank of China prohibited Chinese financial institutions from using bitcoins. After the announcement, the value of bitcoins dropped, and Baidu no longer accepted bitcoins for certain services. Buying real-world goods with any virtual currency had been illegal in China since at least 2009.
After suffering from a prolonged respiratory infection, Mandela died on 5 December 2013 at the age of 95, at around 20:50 local time (UTC+2) at his home in Houghton, surrounded by his family. And Zuma publicly announced his death on television, proclaiming ten days of national mourning.
OnePlus was founded on 16 December 2013 by former Oppo vice-president Pete Lau and Carl Pei. According to Chinese public records, OnePlus' only institutional shareholder is Oppo Electronics. Lau denied that OnePlus was a wholly-owned subsidiary of Oppo and stated that Oppo Electronics and not Oppo Mobile (the phone manufacturer) is a major investor of OnePlus and that they are "in talks with other investors." The company's main goal was to design a smartphone that would balance high-end quality with a lower price than other phones in its class, believing that users would "Never Settle" for the lower-quality devices produced by other companies. Lau explained that "we will never be different just for the sake of being different. Everything done has to improve the actual user experience in day-to-day use." He also showed aspirations of being the "Muji of the tech industry", emphasizing its focus on high-quality products with simplistic, user-friendly designs. Continuing Lau's association with the platform from the Oppo N1, OnePlus entered into an exclusive licensing agreement with Cyanogen Inc. to base its products' Android distribution upon a variant of the popular custom ROM CyanogenMod and use its trademarks outside of China.
A file containing five audio recordings of conversations between Erdoğan and his son from a 26-hour period beginning 17 December 2013, in which he appeared to be instructing his son to conceal very large amounts of money, was posted to YouTube and widely discussed on social media.
On December 19, 2013, Zuckerberg announced a donation of 18 million Facebook shares to the Silicon Valley Community Foundation, to be executed by the end of the month—based on Facebook's valuation as of then, the shares totaled $990 million in value.
On December 19, 2013, Nike's quarterly profit rose due to a 13 percent increase in global orders for merchandise since April of that year. Future orders of shoes or clothes for delivery between December and April, rose to $10.4 billion. Nike shares (NKE) rose 0.6 percent to $78.75 in extended trading.
In December 2013, Turkish police detained more than 50 people and arrested 16 others, including the general manager of Halkbank and the sons of three government ministers, on charges of corruption. Erdoğan reshuffled his Cabinet on 25 December, replacing 10 ministers hours after three ministers, whose sons were detained in relation to the probe, resigned.