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...5px|Improvements to the [[astrolabe]] were one of the achievements of this era]] ...e lasted from the end of the ninth to the end of the eleventh century. The era after this period is conventionally known as the "age of decline". A survey ...

...ious councils of elders are known in [[Greece]] and in the Greek cities of Hellenistic and Roman ages; there was also a similar organism in [[Carthage]]. ''Rome e ...ppuoli |first2=Rino |title=Reverse Vaccinology: Developing Vaccines in the Era of Genomics |journal=Immunity |date=October 2010 |volume=33 |issue=4 |pages ...

[[Hellenistic art]] was fond of light effects, especially in landscape painting, as denot ...35) pointed out the indissolubility of light and color, and affirmed that "philosophers say that no object is visible if it is not illuminated and has no color. Th ...