Introduce yourself to a new kind of history your personal history. The history of your family and ancestors.
Ancestry.com is the main on-line resource for genealogical research and now they have an app! I've used Ancestry.com extensively and I can't recommend it enough to people interested in their family lineage or students of history and genealogy.
This app links to your Ancestry.com account, which is totally free, and allows you to build and grow your own family tree. For additional subscription fees you have access to literally millions of birth certificates, death certificates, US Federal and state censuses and much more.
It's a well crafted app and extremely easy to use. Anyone could have a blast with this, you know, if they're into that sort of thing.
Free, with in-app purchases available.
Compatible with iPhone, iPad, and iPod touch.