In October 1813, more than 500,000 combatants engaged in ferocious combating over three days, making it the most important European land battle of the nineteenth century. It produced an prolonged ultraviolet survey with arc minute source positions on this wavelength region, making it the first instrument with such functionality. The opposite operated at excessive ultraviolet wavelengths. A position-sensitive proportional counter made it possible to survey the sky at X-ray wavelengths and produc...