German South West African Mark the gold content of the British Pound Sterling was 7.3224 grams, while the gold content of 20 marks was 7.168 grams. According to Gresham's Law, "bad money drives out good", so the "bad" Mark replaced the "good" British Pound Sterling. In 1901, the German Mark became the official currency of German South West Africa, hence replacing the 20 and 5 mark denominations of the German South West African Mark, for which they were also demonetized (although, they continued use in the metropolis of German South West Africa until 1907). In 1923, the coins of the German South West African Mark
Good Girl Gone Bad Live Good Girl Gone Bad Live Good Girl Gone Bad Live is the first live long-form video by Barbadian singer Rihanna. It was first released on June 9, 2008 by Def Jam Recordings. The DVD and Blu-ray release features Rihanna's concert at the Manchester Arena in Manchester, United Kingdom held on December 6, 2007, as part of her Good Girl Gone Bad Tour (2007—2009) which supported singer's third studio album "Good Girl Gone Bad" (2007). Most of the concert's set list originates from "Good Girl Gone Bad", however, Rihanna also performed songs from her previous albums "Music of the Sun" (2005)