I waited until evening to make my momentous call to Agent Brennan.
It is noticeable that, while he held his office in the curia through that momentous period of fifty years which witnessed the Councils of Constance and of Basel, and the final restoration of the papacy under Nicholas V., his sympathies were never attracted to ecclesiastical affairs.
The consequences of this blow were momentous; it may be said to inaugurate the ghetto period.
His experiments, in the same year, on the photographic registration of stellar spectra, marked an innovation of a momentous character.
Yet this period was by no means sterile in developments destined to produce momentous results.