PP; Dunno, but I Googled it and got, as a career; "A career as a Historian is a real job, but it’s also a rare job, which is probably why you have never met one. And if you know anybody who is studying to be a historian, there is a good chance they are either in grad school or planning to do graduate work. There are thousands of historians at work in the world today (according to the US Bureau of Labor Statistics, the number in 2012 was 3,800), but if you think about it, in the grand scheme of things, that’s not a lot of people engaged in this field."
But I don't think that's the answer, so I give up.