Claim: The 1996 National Football League season was the Seattle Seahawks' 21st season to participate, and then in 1997, it was sold to Paul Allen, the co-founder of Microsoft.
Evidence: The 1996 Seattle Seahawks season was the franchise's 21st season in the National Football League, the 21st playing their home games at the Kingdome and the second under head coach head coach Dennis Erickson. The team was sold to Paul Allen in June 1997. He was best known for co-founding Microsoft Corporation with childhood friend Bill Gates in 1975, which helped spark the microcomputer revolution of the 1970s and 1980s, later making Microsoft the world's largest personal computer software company.