# History

History is the study of the past.

**Books**

* [OpenStax US History](https://openstax.org/details/books/us-history)
* [Boundless World History](https://courses.lumenlearning.com/boundless-worldhistory/)

**Courses**

* [Khan Academy World History Project Origins to Present](https://www.khanacademy.org/humanities/whp-origins)