An almanac is a yearly publication that provides a variety of information, including calendars, weather forecasts, and astronomical data. Traditionally, almanacs also include facts about agriculture, tides, and notable events. They serve as handy reference tools for farmers, sailors, and anyone interested in planning their activities based on seasonal changes. One of the most famous almanacs is the Old Farmer's Almanac, which has been published since 1792. It combines practical information with entertaining articles, recipes, and advice. Almanacs can vary widely in content, but they all aim to provide useful information for everyday life and planning throughout the year.