[5] Module 1 | The significant milestones and key events in the historical development of the aviation and air transportation industry.

10. **Digital Revolution (Late 20th Century):

The adoption of computer technology revolutionized airline operations. Reservation systems like Sabre and Amadeus streamlined booking processes, and the internet made it possible for passengers to book flights online, leading to e-commerce in the airline industry.

11. **Terrorist Attacks (September 11, 2001):

The 9/11 attacks had a profound impact on the aviation industry. It resulted in heightened security measures, stricter regulations, and changes in passenger behavior, including a significant increase in airport security screening.

12. **Low-Cost Carrier Boom (2000s):

Airlines like Ryanair and Southwest Airlines popularized the low-cost carrier model, offering budget-friendly fares and simplified services. This led to increased competition and the democratization of air travel.