[link|http://www.johnsmiley.com/visualbasic/vbhistory.htm|The History of Visual Basic].
March 1988---Microsoft Buys Tripod

Alan Cooper, the 'father' of Visual Basic, shows a drag-and-drop shell prototype called Tripod to Bill Gates. Microsoft negotiates to buy the concept, now code-named Ruby. The Tool includes a widget control box, the ability to add widgets dynamically, and a small language engine.

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March 20, 1991---VB1 Debuts at Windows World

Microsoft marries QuickBasic to Ruby shell app and gives it a new code name: Thunder. The result is the first tool that lets you create Windows appos quickly, easily, and visually. Features include a drag-and=drop control toolbox, codeless UI creation, and an event-oriented programming model.