Claim: The 1988 Seattle Seahawks season was the team's 13th season with the National Football League in which they won their first division title in the AFC West and had their first game of regular season on September 4th at Denver.
Evidence: The 1988 Seattle Seahawks season was the team's 13th season with the National Football League. The Seahawks won their first division title in the AFC West. September 4 at Denver Broncos Week