November 1989 – Cold War: Velvet Revolution begins: In Czechoslovakia, a student demonstration in Prague is quelled by riot police. This sparks an uprising aimed at overthrowing the communist government (it succeeds on December
Confusingly, several incompatible district systems are used in Prague. Partially, different systems are from different historic periods, but at least three different systems are used today for different purposes. To make things even worse, a single district name can be used in all the systems, but with different meanings.