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A further complication is encountered due to the length of the year itself. The historical ramifications of the inability of man to exactly measure this length have been appalling. The trouble began when Julius Caesar, advised by a Greek astronomer, established the Julian Calendar, based on the assumption that the year was exactly three hundred and sixty-five and one-quarter days long, and that all we had to do was add an extra day every fourth year. This was discovered to be wrong by none other than the Venerable Bede (a medieval English historian) who announced to the world in the eighth century that the Julian year was eleven minutes and fourteen seconds too long.
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