section_path: Legacy/Currency denomination
section_name: Currency denomination
paragraph_text: Currency denomination
  
  The use of the name Kuruş as a currency denomination for coinage goes back to the 6th century BC, dating to the time of the Croeseid, the world's first gold coin, originally minted by King Croesus of Lydia. The Croeseid was later continued to be minted and spread in a wide geographical area by Cyrus the Great (Old Persian: 𐎤𐎢𐎽𐎢𐏁 Kūruš), the founder of the Achaemenid Empire, who defeated King Croesus and conquered Lydia with the Battle of Thymbra in 547 BC. Cyrus (Kūruš) made the Croeseid the standard gold coin of his vast empire, using the same lion and bull design, but with a reduced weight (8.06 grams, instead of the standard 10.7 grams of the original version issued by King Croesus) due to the need for larger amounts of these coins, for a much larger population.