Originally Posted by GuidoYaztremski
That's because the life expectancy, even as recent as the early 20th century, was only 30-40 years as opposed to over 70 today.
edit: Oh, and what Reign said^^^^.
I'm pretty sure it had to do with women having no rights, and they were treated more like property. The reason men married 13 year old girls is because they could, and men are pigs. Even so, there were men that desired a more challenging, and fulfilling relationship than that. I never wanted a relationship with a women I didn't respect. You need to take care of yourself for around 10 years before you actually grow up. The ages were different back then because you may be on your own at 13, so that would make you an adult by around 23. Today it could be as late as 35.