Knowra Almanac Almanac An almanac is a publication, usually issued annually, that combines calendar information with useful reference material such as astronomical data, forecasts, statistics, or practical advice.
Calendar : A system for organizing days into weeks, months, and years. Calendar tables provide the recurring structure around which many almanacs are arranged.
Babylonian astronomy : The systematic observation and recording of celestial phenomena in ancient Mesopotamia. Its long observational records helped establish traditions of astronomical prediction later used in almanacs.
Nautical almanac : An annual publication of astronomical data used to determine positions at sea. It shows how almanac tables supported celestial navigation.
Yearbook : An annual publication recording events, statistics, or activities from a particular year. Yearbooks summarize a year’s record, while almanacs commonly organize recurring calendar and reference data.
Ephemeris : A table giving the calculated positions of celestial bodies at specified times. Astronomical almanacs publish ephemerides for observing and navigation.
Regiomontanus : A fifteenth-century German mathematician and astronomer who produced influential astronomical tables. His 1474 calendar and ephemeris helped establish printed almanacs in Europe.
The Old Farmer's Almanac : An American annual periodical first published in 1792, combining calendars, forecasts, and practical articles. Its enduring format centers on seasonal guidance and general-interest reference.
Encyclopedia : A reference work containing entries on a wide range of subjects, usually arranged alphabetically or by theme. Encyclopedias aim for broad subject coverage rather than an annual cycle of updated information.
Astronomical year number : A continuous year-counting system that includes a year zero and numbers negative years. Its numbering conventions help interpret historical dates found in older almanacs.
Johannes Müller von Königsberg : The birth name of Regiomontanus, a mathematician and astronomer known for reforming astronomy. The almanac’s early European print history is often attached to this scholar under his Latinized name.
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