Ceratonia siliqua harubh. "Ceratonia siliqua", the scientific name of the carob tree, derives from the Greek "kerátiοn" κεράτιον 'fruit of the carob (from "keras" κέρας 'horn'), and Latin "siliqua" 'pod, carob'. The unit "carat", used for weighing precious metal and stones, also comes from κεράτιον, as alluding to an ancient practice of weighing gold and gemstones against the seeds of the carob tree by people in the Middle East. The system was eventually standardized, and one carat was fixed at 0.2 grams. In late Roman times, the pure gold coin known as the "solidus" weighed 24 carat seeds (about 4.5 grams). As
Gold standard grams of pure (24-carat) gold. Mahathir claimed it would be a stable unit of account and a political symbol of unity between Islamic nations. This would purportedly reduce dependence on the US dollar and establish a non-debt-backed currency in accord with Sharia law that prohibited the charging of interest. the global monetary system continued to rely on the US dollar as the main reserve currency. Former U.S. Federal Reserve Chairman, Alan Greenspan acknowledged he was one of "a small minority" within the central bank that had some positive view on the gold standard. In a 1966 essay he contributed to