He was inspired by Simula - the world's first object oriented programming language (created by two Norwegians). It introduced objects, classes, subclasses, virtual methods, coroutines,discrete event simulation and featured garbage collection.
This attitude of how everything that is great has come from USA is one of the reasons why some feel the need to add other news sources to their RSS reader.
I personally think it's a bit more than funding though--for lack of a better way of putting it, the feeling of opportunity and independence is what provides a fertile ground for starting a business. We commonly have room for people arguing and making idiots of themselves, for going against the grain, for dropping out and trying to achieve great things.
There's still a sort of individualism in parts of the US that I believe makes doing business and work here great.
(honest question) Is there such great tolerance of nonconformity elsewhere? I've heard distressing things about parts of Europe and Asia in this regard (Japan, for example, apparently does not support the sort of ecosystem we do due to societal expectations of young folks). I dislike painting in broad strokes, but the topic seems to lend itself to that.
Hardware: MIPS, x86, SPARC, Motorola 68* (and the attendant Apple product lines [1,2,Mac, etc.]), DTMF phones (and thus modems), the transistor (though some very preliminary work was done in Canada and Germany, Bell Labs and TI brought them to manufacture), Ethernet, packet-switched networks, touch and light-pen interfaces, etc.
Software: 3D graphics, functional programming (LISP et al), node.js, JavaScript, C, C++, Java, jquery, Unix, Plan 9, Windows (lol), BSD everything (sockets, operating system, license), modern information theory (thanks Shannon!), BitTorrent, etc.
Culture: GNU, EFF, FSF, copyleft, etc.