Final answer:
A Farmer's Almanac is an annual publication that includes agricultural information and a calendar with astronomical data for farmers. It has historically been a fundamental resource for farming decisions, although modern technology now also plays a significant role in providing data for farmers.
Step-by-step explanation:
A Farmer's Almanac is an informational book written annually about various subjects including agriculture, and it often contains a calendar with astronomical information useful for farmers. Almanacs like the Facts on File World News Digest and the World Almanac and Book of Facts provide updated information on a range of topics such as politics, agriculture, economics, population, sports, government, science, business, and education. These publications have been imperative in helping farmers make informed decisions about when to plant and harvest their crops, especially before the era of modern technology brought about detailed data streams driven by global positioning systems, historical rainfall patterns, and complex weather monitoring services.
The accuracy of calendars has always been critical for agricultural success, as early farmers relied on them to determine the optimal times for planting and harvesting based on seasonal changes and weather patterns. Today, while many farmers utilize technology for these decisions, traditional sources like the Farmer's Almanac still serve as a valuable resource, fusing historical data and folklore to provide weather forecasts and farming advice.