I also find it fascinating, though I would say that we're not as highly documented as you might think. Articles and information is deleted and edited out of Wikipedia every second of every day. Mostly due to disagreements about whether a source, citation, or reference is "verifiable enough". For example, the device I have in my possession on which I found these oldest emoji is not proof enough that they exist, at least according to Wikipedia's rules. And then there's the grey area of early 1990s to early 2000s when the internet was still growing but wasn't big enough to contain enough good references, and those links that it did contain are probably long gone. So there's a second set of things that can't go on Wikipedia. Anyway! I think we have a long way to go.