The Sighet ghetto was established on April 18–20, 1944 by the Hungarian gouvernment. For details click here.
Short history of the Sighet prison and historical background (key facts)
The Sighet Memorial Museum (full name: The Memorial of the Victims of Communism and of the Resistance) was set in 1993 in the former prison.
It is very emotional and documents the political repression after 1945.
This is a somber period in Romanian history. Read more on the Web.
Below the Ribbentrop-Molotov Pact is also mentioned (more details in the link)