I’ve been meaning to post this image here for some time:
Guess what it is. If in doubt, look at the categories list below. Then go here, to confirm what you must surely have worked out.
Many have described the event at which this happened as historic, but not because of this. But I reckon what you see in the above picture is what historians will end up being most impressed by, about this event, because it was a very public manifestation of a very impressive sort of technology, which is going to have a very big future.