The Prepper's Almanac

How many liters are in a gallon? How many miles are in 70 kilometers? What time will the sun rise next Thursday? When is the next lunar eclipse? How long will the food items in my cupboard remain good to eat? On which day of the week does Christmas fall next year? All of these are valid and common questions you may ask on a regular basis, but they are questions that the average person doesn't know the answer to off the top of their head. How can you find the answer? The easy and obvious way...