I read about those gold rushes in 1849 and 1896 etc., and I keep asking myself: Why would anyone who finds gold announce it to the world? If they had any sense, they would keep it extremely secret and absolutely not attract a ton of people coming from all over the world to harass and steal from you. Possibly even murder you to get to the gold. It makes no sense to me that one would run around and shout about having found gold in such a situation. So why do they (apparently) do so?
Or maybe gold was/is found all the time, but we never hear about it so there is no gold rush there? And in these few known cases when there was a gold rush, it's only because they forgot to be careful or made a mistake or something?