The keyword "20 install" refers to the 20th anniversary of Adolf Hitler's appointment as Chancellor of Germany, which took place on January 30, 1933. To commemorate this event, the Nazi regime created a series of installations and propaganda campaigns that solidified Hitler's status as a national hero.

Hitler's rise to power began in the aftermath of World War I, where he served as a messenger on the Western Front. The war had a profound impact on Hitler, who was decorated for bravery and wounded twice. The Treaty of Versailles, which imposed harsh penalties on Germany, further fueled his nationalist sentiments and sense of injustice.

The Nazi Party's rise to power was swift and decisive. Hitler's message of German revival, militarism, and anti-Semitism resonated with a population disillusioned with the Weimar Republic and the Treaty of Versailles. The party's paramilitary wing, the SA, helped to intimidate opponents and enforce Nazi control.

The most notable installation is the Führerbunker, a massive underground complex built in Berlin to serve as Hitler's headquarters. The bunker, which was completed in 1936, was designed to protect Hitler from assassination attempts and provide a secure command center.