Taschenkalender - pocket calendar from about 1400 CE This pocket calendar from about 1400 was intended to be used daily by farmers and therefore could be folded. In this form it had a size of 7,5 x 6,5 cm. Besides the usual labour of the month and the respective sign of the zodiac it additionally shows a schematic representation of the average length of the day.

Taschenkalender - pocket calendar from about 1400 CE This pocket calendar from about 1400 was intended to be used daily by farmers and therefore could be folded. In this form it had a size of 7,5 x 6,5 cm. Besides the usual labour of the month and the respective sign of the zodiac it additionally shows a schematic representation of the average length of the day.

An astrological calendar by Nicholas of Lynn ~1324

An astrological calendar by Nicholas of Lynn ~1324

Ancient Roman calendar went through a number of improvements which led to the modern calendar. The earlier versions of Roman calendar were based on the lunar cycle and contained ten months. The later calendar was based on the solar cycle. It was reformed under Julius Caesar, hence its name "Julian Calendar". The Roman calendar was based on the lunar cycle and contained ten months. The later calendar was based on the solar cycle.

Ancient Roman calendar went through a number of improvements which led to the modern calendar. The earlier versions of Roman calendar were based on the lunar cycle and contained ten months. The later calendar was based on the solar cycle. It was reformed under Julius Caesar, hence its name "Julian Calendar". The Roman calendar was based on the lunar cycle and contained ten months. The later calendar was based on the solar cycle.

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