{As part of the conclusion to my USHMM Teacher Fellowship project, I am posting the unfolding nature of the discovery of the camps as Allied troops closed in from the East and the West, sixty-five years to the day that the discovery/event occurred.}
March 21, 1945: Red Army troops enter the Pruszcz, Poland, camp near Stutthof. Only about 200 women prisoners, out of an original 1100, remain alive.
March 26, 1945 – American troops liberate the town of Hadamar, Germany.
March 29, 1945: The Red Army takes Danzig.
March 30, 1945: Jewish women being led to their deaths at the Ravensbrück, Germany, camp grapple with their SS guards. Nine of the women escape but are recaptured and murdered with the rest.
March 30, 1945: Soviet troops enter Austria.

Buses used to transport patients to Hadamar euthanasia center. The windows were painted to prevent people from seeing those inside. Germany, between May and September 1941. — Hessisches Hauptstaatsarchiv Wiesbaden
March 31, 1945 – Members of the US 2d Infantry Division investigate the facilities of the Hadamar euthanasia killing institution after local inhabitants report the murder of thousands of people. The Americans find 550 patients still alive. Several members of the staff are arrested.
March 31, 1945– One source mentions that Anne Frank died at the age of 15 in the Bergen Belsen concentration camp.
Source(s):
Weber, Louis. The Holocaust Chronicle. Publications International Ltd., 2007. http://www.holocaustchronicle.org
The United States Holocaust Memorial Museum, 1945- The Year of Liberation. 1995.
http://www.ushmm.org/wlc/en/media_ph.php?ModuleId=10005200&MediaId=881