PART 2 - FOUR HIDDEN CHIMNEYS CHAPTER 8: THE SHIELD OF SCREWTAPE YES, BUT . . .

"Sabre grew from a collaboration between American Airlines and IBM and became a foundational real-time airline reservation system that helped globalize air travel."

IBM traces Sabre to the American Airlines and IBM collaboration and describes the system as revolutionizing air travel, hastening globalization, and helping create the online marketplace. + Undated live official IBM history page; current-year convention applied as of October 3, 2026.

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