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Here’s a look back at how Heathrow grew from an airfield where passengers waited for flights in tents, to a major hub with around 75 million people passing through it each year. | BBC London

🛫 Heathrow Airport, London — one of the world’s busiest international gateways — has undergone remarkable transformation since 1999. The development of Terminal 5 (opened in 2008) and the modernization of Terminals 2 and 3 have redefined its global status. With continuous infrastructure expansion, advanced air traffic systems, and sustainability-driven designs, Heathrow has evolved into a benchmark of 21st-century aviation excellence — combining efficiency, innovation, and passenger comfort at