In the field of finance, a number of processes can be predicted.However, unpredictable situations occur. It is stated with the phrase: a black swan has arrived.These are major extraordinary events, especially wars. The article analyzes the period from the reign of Maria Theresa, through the First and Second World Wars, as well as the current economic situation.Currently, the economy has been particularly affected by the coronavirus pandemic and the ongoing wars in Ukraine and the Gaza Strip.The author suggests areas in which it is possible to at least partially prepare for emergencies.