November 9th is one of the most noteworthy dates in German history. Historians identify at least six important events, both celebrated and reviled:

-On this day in 1848, Robert Blum was assassinated in Vienna due to his revolutionary efforts to democratize Germany.

-In 1918, Philipp Scheidemann proclaimed the Weimar Republic.

-Hitler attemped his Bierkellerputsch (Beer Hall putsch/coup) in Munich on November 8-9, 1923.

-Two years later (1925), the infamous SS was established.

-The Nazi anti-Jewish pogrom known as the night of broken glass, or Kristallnacht, occurred on this date in 1932.

-The Berlin Wall fell on November 9, 1989.

For more information about these important German historical dates, here is a selection of news and history sources:

The 9th of November in Germany History – an overview About.com from author Hyde Flippo.

Schicksalstag der Deutschen – an overview of historical events in Germany on the day of November 9 – from Deutsche Welle (in German). Also available in English here.

Es lebe die Republik – 9. November 1918  – narrative of the announcement of the Weimar Republic from Deutsche Welle (in German).

Kristallnacht: a nationwide pogrom, November 9-10, 1938 – an encyclopedia entry from the United States Holocaust Memorial Museum.

The BerlinWall: A Division Through Time – a great NY Times feature on the Berlin Wall on the 20th anniversary of its fall in 2009.

Deutsche Welle also has a brief English article about the fall of the Wall here.