North or south if u need more help just let me know hope this helps u
Post-war, all of the combatants were rather weighed down by large amounts of debt they had accumulated during the war. This, combined with rapid overproduction of currency, caused hyperinflation and doomed global economies, later leading to the Great Depression.
The answer is Marie Curie
As far as I know I'm pretty sure they weren't free due to the laws around the time period