premise: Putnam County is a county located in the U.S. state of West Virginia. As of the 2010 census, the population was 55,486. Its county seat is Winfield. The county was founded in 1848 and is named for Israel Putnam, who was a hero in the French and Indian War and a general in the American Revolutionary War.
hypothesis: Putnam county has been founded for 171 years.
reason: Putnam County was founded in 1848 and the year is now 2019, making the county 171 years old. 