Taler

The dollar begins in 1519, in the silver mines of Joachimsthal, a narrow valley in the Ore Mountains of northwestern Bohemia, now the Czech town of Jachymov. When the local Count Schlick began minting large silver coins from the valley's rich deposits, traders needed a name for them. They called the coins Joachimsthaler, after the valley — thal meaning 'valley' in German, the same root that gives English 'dale.' The name was immediately too long for commercial use, and within a few years the coins were known simply as Thaler or Taler. This was not unusual: medieval coinage was routinely named for its place of origin. What was unusual was the Taler's quality and consistency. The Joachimsthal mines produced exceptionally pure silver, and the coins were minted to a reliable weight, making them trustworthy across borders at a time when debasement and clipping plagued most European currencies. The Taler became the standard large silver coin of the Holy Roman Empire.

The Taler's influence radiated outward through trade. The Dutch adopted the coin as the daalder, the Scandinavians as the daler, and the Spanish — whose empire depended on silver from the Americas — modeled their own large silver coin, the peso de a ocho (piece of eight), on the Taler's weight standard. It was the Spanish dollar, as the English called the peso, that became the dominant trade currency of the Atlantic world. Spanish silver mines in Potosi and Mexico flooded global markets with coins that circulated from Canton to Cairo to the Carolina colonies. When English colonists in North America needed a word for their most common medium of exchange, they reached not for 'pound' — the currency of the mother country they were leaving — but for 'dollar,' the word already in daily use in every colonial port.

The Continental Congress adopted the dollar as the official currency of the United States in 1785, largely at the urging of Thomas Jefferson, who argued that the decimal system was simpler than the pounds-shillings-pence arithmetic of British money. The dollar sign ($) itself has disputed origins: it may derive from a superimposed 'P' and 'S' for peso, or from the Pillars of Hercules depicted on Spanish coins with an S-shaped ribbon. The new American dollar was defined as 371.25 grains of pure silver, deliberately pegged to the weight of the Spanish dollar already circulating in the states. The word that began in a Bohemian valley now named the currency of a republic that would eventually make it the world's reserve currency, the unit in which oil, gold, and international debts would be denominated.

Today the dollar names the currency of more than twenty countries, from Australia to Zimbabwe, each with its own history of adoption. The US dollar's dominance in global trade means that the word carries connotations far beyond numismatics: dollar diplomacy, dollar stores, the almighty dollar, the bottom dollar. The phrase 'the sixty-four-thousand-dollar question' preserves the currency as a unit of importance itself. Yet behind every use of the word lies the ghost of that Bohemian valley — the thal that became Taler that became dollar, a place name that traveled so far from its origin that no one reaching for a dollar bill thinks of silver mines in the Czech mountains. The valley has been forgotten, but its name circulates in every economy on earth.