It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Between 2007 and 2012, Bill Gates gave away $28 billion; saving 6 million lives.
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Chen Guanming, from Jiangsu province in eastern China, traveled by RICKSHAW for 2 years and covered nearly 40,000 miles through 16 countries, surviving flood, war zones and extreme temperatures, finally arriving at the London 2012 Olympics.
7
There's a woman named Veronica Seider who had vision 20x better than average. She could identify people more than a mile (1.6km) away.
22