(a) Everything old is new again.
(b) So many youngsters now, unfamiliar with the history of this field.
Kids, gather round. Let me tell you of a glorious time known as the year 2000. It was a crazy time, people were just happy to still be alive after the twin terrors of the rapture and the Y2K. The world was buzzing with talk of an exciting new operating system called OSX, with its wild new appearance known as Aqua.
Into this space, Microsoft introduced an exciting new "aqua-inspired" browser for the mac, known as IE5.
And what was one of the headline features of IE5?
You guessed it -- vertical tabs!
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