Ottoman lira para denominations were struck in copper, the kuruş in silver and the lira in gold. The 1 para was discontinued in 1859, with the higher copper denominations ceasing production between 1863 and 1879. In 1899, billon 5 and 10 para were introduced, followed by nickel 5, 10, 20 and 40 kuruş in 1910. Gold coins continued to be minted after the abolition of the gold standard, even into the 1920s, but their value far exceeded the value of the equivalent denominations in paper currency. The central Ottoman Bank first issued paper currency Kaime in 1862, in the denomination of 200
Rise of the Ottoman Empire Turkic tribe which migrated out of Central Asia in the wake of the Mongol Conquests. As evidenced by coins minted during his reign, Osman's father was named Ertuğrul, but beyond this the details "are too mythological to be taken for granted." The origins of the Ottoman dynasty thus remain obscure, shrouded in myth and legend, and the identity of Osman's tribe and ancestors is not known for certain. Likewise, nothing is known about how Osman first established his principality ("beylik") as the sources, none of them contemporary, provide many different and conflicting origin stories. What is certain is that at