She isolated radium from (many tons of) Uranitite, which was donated by Austrian goverment. This was waste byproduct of mines in Jáchymov (today in Czech republic).
Ah yes, the favorite place of Communism regime to dispose of unwanted citizens, instead of just hanging them.
It was usually a death sentence, be it for uranium ore, brutality of the guards or inhumane conditions. Crimes varied, often political opponents of hardline communists (including less radical ones), or being in domestic/foreign resistance against nacism during WWII.
Quite a few folks who fought for allies ie pilots in Battle of Britain, went home as heroes and ended up there. Sad times
It was usually a death sentence, be it for uranium ore, brutality of the guards or inhumane conditions. Crimes varied, often political opponents of hardline communists (including less radical ones), or being in domestic/foreign resistance against nacism during WWII.
Quite a few folks who fought for allies ie pilots in Battle of Britain, went home as heroes and ended up there. Sad times