Reserve currency before the beginning of the worldwide credit crunch related recession and Eurozone crisis, which harmed the euro and slowed its adoption. Since 2009, the reserve currency use of the euro has continued to drop, down to 23.9 percent in 2013. The Dutch guilder was the "de facto" reserve currency in Europe in 17th and 18th centuries. The United Kingdom's pound sterling was the primary reserve currency of much of the world in the 19th century and first half of the 20th century. The emergence of the USA as an economic superpower, and the establishment of the U.S. Federal Reserve System
S. S. Still 1876 to 1878. After graduating he taught school in Douglas County, Kansas. After his marriage Still and his wife moved to Maryville, Missouri and then moved to Kirksville in 1893. In 1893, he enrolled at the American School of Osteopathy (now the A.T. Still University) in Kirksville, which was founded by his uncle, Andrew Taylor Still, the developer of osteopathic medicine in the United States and the president of the school. He and his wife studied osteopathy at the American School of Osteopathy In 1895, S. S. Still graduated with a Doctor of Osteopathic Medicine, and then stayed at the