WASHINGTON (AP) — Christine Lagarde, the managing director of the International Monetary Fund, is calling the inclusion of China's renminbi as the fifth currency in an elite group of the world's reserve currencies an "important and historic milestone" for the international financial system. Lagarde said the expansion of the IMF's key currencies to include the Chinese renminbi was a recognition of the progress China has made in reforming its monetary and financial systems. Lagarde spoke on Friday at IMF headquarters in Washington, one day before the Oct.Read more on NewsOK.com