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
Bad Girl Good Girl Bad Girl Good Girl "Bad Girl Good Girl" is a song recorded by K-pop girl group Miss A for their debut EP "Bad But Good". The song served as the group's debut single in July 2010. "Bad Girl Good Girl" became an instant commercial success in South Korea, topping the Gaon Digital Chart. On July 1, 2010, both "Bad Girl Good Girl" and their first EP "Bad But Good" were released. On June 30, 2010, the music video for the song was released online. The music video features the girls in a school, dancing in sync. The group had their