Remember, an almanac is updated and released yearly, it's not a one-time publication. Be sure to get the latest version of the almanac for current astronomical data.
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Practical Uses
Almanacs are practical, providing information that helps people with agriculture, fishing, and outdoor activities. Check the almanac for the frost dates before you decide when to plant your garden.
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Historical Records
Almanacs have been used historically and can be a resource for past weather or celestial events. I looked up past lunar eclipses in an old almanac for my astronomy project.