The simple answer is "It depends ..." Germany adopted the euro as its currency in 2002, and has had many previous currencies called marks. If you're referring to a coin or bill denominated in...
According to Forbes, Zuckerberg is now worth a note worthy $6.9 billion thanks to his 24% stake in Facebook. Read: Facebook's Mark Zuckerberg Now Worth $6.9 Billion, Richer Than Steve Jobs [Facebook...