Silver has been worked by humans since at least 3000 BCE, with early evidence traced to ancient civilizations in Anatolia and Mesopotamia. Unlike iron, silver rarely appears in pure metallic form; it is typically extracted from ores through a process called smelting. Early metallurgists discovered that heating silver-bearing ores to high temperatures allowed the metal to separate, forming a liquid that could then be shaped before solidifying. One of the most important breakthroughs in silver refining came with cupellation, a technique developed by ancient cultures to separate silver from lead. This method involved heating the alloy in a porous vessel, allowing impurities to oxidize and leaving behind purer silver. It marked a turning point in metallurgy, enabling more precise control over material properties and accelerating the use of silver in currency, tools, and art. As civilizations advanced, so did casting techniques. From simple open molds carved in stone to complex lost-wax c...