The Berlin Wall was torn down by mistakenly-empowered citizens after an East German spokesman misspoke at a press conference and mentioned immediate border crossing privileges for every citizen.
There is a section of the Berlin Wall in the men's bathroom of the Main Street Station casino in Las Vegas.
The 9th of November is a significant day in Germany. In 1918, Germany became a republic. In 1923, the Bier Hall Putsch in Munich. In 1938, Kristallnacht. In 1989, the Berlin Wall fell.
The Berlin Wall's actual demolition did not happen in 1989. It began in the summer of 1990 and was not completed until 1992.
The East German government claimed that the Berlin Wall was an "anti-fascist protective rampart" intended to dissuade aggression from the West, but it was mostly to prevent their citizens from fleeing to West Berlin.