A little different angle than what you are asking, but I'm a history major who worked for a bank and then in accounting departments since graduating. Other people will be able to talk about history related jobs, but just having a degree lets you work a variety of non-history jobs if that becomes a desire/necessity.

I've got a Masters in War, Media and Society and I'm currently serving in the British Army as a Officer, and most of my points are focused on your main title question while picking up some of your follow on questions along the way. I'm hoping that others will pick up some of your more field specific questions. My advice would be that you should foremost always focus upon emphasising the soft skills that your degree taught you that are universally applicable, as being as important if not more so than the hard skills that a detailed knowledge of the past provides.

For soft skills your chosen profession the ability to conduct independent in depth research without close oversight, to hold an argument effectively closely supported by detailed evidence, and ultimately the ability to present this argument effectively. finally it demonstrates the passion you have for that hard work, which marks you out as a motivated candidate which enjoys the thrill of dry academia, which brings out your personality and could indicate an ability to endure the drudge of more normal work. All of those skills are of use to an employer.

For hard skills, I was able to argue in my job interviews that a detailed understanding of how media, culture and society drive conflict and the nature and character of war was directly relevant to my role as an army officer (not much of a hard sell to be honest). Presenting the skills you gained in such terms will also enable you to present the hard skills of historical knowledge in a way which most employers would be interested in give today's international and increasingly globalised and inter-connected world where the ability to understand how culture, media and society directly affects personal and professional relations and knowing how to avoid giving offence and how to behave and present yourself to enable you to have effective working relationships are all attractive attributes to a potential employer. I occasionally get to use my degree in greater detail as I'm been on battlefield tours to Normandy, the Somme, Israel and currently am organising one to Sicily.

Ultimately you should aim to take an dispassionate, objective view of the skills you have, understand what employers are seeking, and then bridge the gap between those two points.