Gabe Newell and Mike Harrington left Microsoft to found Valve Corporation. This marked a significant turning point in Newell's career, transitioning from a programmer at Microsoft to a leader in the video game industry.

Gabe Newell marries Lisa Mennet on the same day he founded Valve Corporation. This marks a significant personal event coinciding with a major professional milestone.

Gabe Newell leaves Harvard to join Microsoft as programmer and technical executive

Gabe Logan Newell was born in Colorado, U.S. This is the birth date of the influential figure in the video game industry, marking the beginning of his life and eventual career at Valve Corporation.