From Sunday, 2 September to Wednesday, 5 September 1666, a major conflagration swept through the central parts of the English city of London, destroying the medieval City of London inside the old Roman City Wall. The social and economic problems created by the disaster were overwhelming. Evacuation from London and resettlement elsewhere were strongly encouraged by Charles II, who feared a London rebellion amongst the dispossessed refugees. Despite numerous radical proposals, London was reconstructed on essentially the same street plan used before the fire.
On 24, March, 1756, Prussian king Frederick the Great passed the circular order that should ensure the cultivation and deployment of potatos in his country. Actually, citizens received this only rather refusing, because this subterranean vegetable seemed rather suspicious to them. But there is the saying that the king used a clever trick to convince his subjects...
The optimism and financial gains of the Wall Street stock market were shaken on "Black Thursday", October 24, 1929, when share prices on the New York Stock Exchange (NYSE) abruptly fell. On this very day, the crash started with a market loss of 11% of its value at the opening bell on very heavy trading.