What is "jachymov"

Jáchymov , until 1945 known by its German name of Sankt Joachimsthal or Joachimsthal (meaning " Saint Joachim's Valley"; ) is a spa town in the Karlovy Vary Region of Bohemia, now part of the Czech Republic. It is situated at an altitude of above sea level in the eponymous St. Joachim's valley in the Ore Mountains, close to the Czech border with Germany.

The town was mostly German-speaking until the end of the Second World War. In 1938, it was annexed by Germany as part of the Sudetenland. The German-speaking population was expelled in 1945 and replaced by Czech-speaking settlers.

The silver Joachimsthaler coins minted there since the 16th century became known as Thaler for short, with the word " dollar" and similar words for monetary units in many languages deriving from it.