What was the approximate life expectancy for the average European living in medieval times Why was it higher than those living in the Roman Empire?

Why did Peasants and nobles moved from manors to towns? Did they use pounds in medieval times? What is the origin of the quote It was the best of times It was the worst of times? How rich were kings in the 16TH century? Who was the founder of the House of Capet? Who invented the steam locomotive in the 1800s? What crisis did the English face in the mid 16Th century? What did the Romans do in the time of Jesus? Who were chivalrous knights? Did the Romans play conkers? What does the baby name caden mean? What is pathegrium? What is disification? How did the first nations people start trading? What are the evidences that history is the record of the past? Who sold drilling rights on land in Wyoming during the early 1920s? Is the 1600s the 16th century? When was North West Company created? What was one of the most important occupations in monasteries during the middle ages? What is peripherization?