Know how I know? My Farmer’s Almanac tells me so. The Old Farmer’s Almanac is one of the best reference books to have around your house, and a copy only costs $5.99. It’s teeming with information about astronomy (as they point out, that’s what makes it an almanac), gardening, and weather, and they still include interesting dates and facts from the old liturgical calendar. I page through this book often and have even been inspired to write poems based on certain oddball turns of phrase in there. The best thing about it is it’s a part of American history, published continuously since 1792 when George Washington was serving his first term as president.