Bacon has an ancient history. The domestication of pigs (immature hogs) for food dates back to about 7000 B.C. in the Middle East. Some historians say that bacon made from hogs was a favorite of the early Romans and Greeks. About 500 years ago, bacon or bacoun (a Middle English term) referred to all pork.
Although walking speeds can vary greatly depending on many factors such as height, weight, age, terrain, surface, load, culture, effort, and fitness, the average human walking speed is about 5.0 kilometres per hour (km/h), or about 3.1 miles per hour (mph).
General Guidelines. Weight loss specialists often advise patients who want to walk to lose weight to aim to move for 30 minutes at least four or five times a week. Many people are able to cover about 2 miles (about 3 km) in this amount of time, and the calorie burn is significant, too. A 150-pound (68 kg) person walking between 3.5 to 4 miles (5.6 to 6.4 km) an hour can expect to burn about 300 calories.