With the appearance of the entry "Lest We Forget" an idea hits into my mind.
Let's compile a list of MacGarden entries that affect the German History:

German Social History
In German (s)lang(uage), this CD-ROM informs about German social history from the Middle Ages to the present.

Goethe in Weimar
This CD-ROM (in German language) shows different aspects of Goethe's life. His main works are introduced by short films or sound recordings of readings.

Indiana Jones and the Last Crusade
Why not add games to this list?

Over the Reich
Takes place during World War II, and you can fly for either the German Luftwaffe, the Royal Air Force, or the USA Air Force.

Anne Frank House CD-ROM
The Anne Frank House is the house on the Prinsengracht in Amsterdam, where Anne Frank wrote her now world-famous diary (The Annex) during the Second World War.

Lest We Forget
An entry thanks to Butterburger, a Reference title subtitled with "A History of the Holocaust".

The Complete Maus
Art Spiegelman's record of his father's history as a graphic novel, conducts a series of interviews with him over several years, which I couldn't resist to comment with "If a German would pronounce that location as "Mauschwitz", he would be jailed for 10 years minimum."

Interzone
Franz John explores the dead line between the previous two German Countries by bicycle, equipped with a video camera.

Auftrag: Frieden ("Order: Peace")
This CD-ROM informs about history of German Bundeswehr from 1949 to 1998.