In the middle of the sixth century B.C., King Croesus of Lydia minted the world's first gold coin. Known as a stater or ...

For centuries, coins have served as more than just a means of exchange—they are miniature works of art ... Originally worth $20, this gold coin was produced between 1907 and 1933, and some ...

But Alyattes had been making coins out of electrum, a naturally occurring gold-and-silver alloy that often has bits of other metals in it. Alyattes' coins were standardized based on weight ...