173 Marcomannic Wars: The Roman army in Moravia is encircled by the Quadi, who has broken the peace treaty (171). In a violent thunderstorm emperor Marcus Aurelius defeats and subdue them in the so-called "miracle of the rain".
1278 Ladislaus IV of Hungary and Rudolph I of Germany defeat Premysl Ottokar II of Bohemia in the Battle of Marchfield near Dürnkrut in (then) Moravia.
1939 World War II: German troops occupy the remaining part of Bohemia and Moravia; Czechoslovakia ceases to exist.