The first duty-free shop in the world was established by Brendan
O'Regan in 1947 at Shannon Airport in Ireland and is still in operation today ,

The barcode scanning system was first used in a retail establishment in 1974 in
a supermarket in Troy, Ohio , and the first product with a barcode was a
Wrigley's gum,

The first commercial jet was the De Havilland Comet 1A , and its first
commercial flight from London to Johannesburg on the 2nd of May 1952,

The College Park Airport in Maryland is the oldest airport in use
in the world and was founded in 1909 by Wilbur Wright to
train two military officers in the US military,

Did you know that

The first “business class" application was introduced in 1978 by
British Caedonian Airlines on flights between the United Kingdom
and the United States?