13.8 Billion Years of History. Free. Online. Awesome.




Join Your Class

Lifelong Learners

Explore BHP

What is big history project?


Harness the curiosity and creativity of your middle and high school students with a supercharged social studies curriculum that gets beyond facts. Big History Project is a free, online social studies course that emphasizes skill development as students draw mind-blowing connections between past, present and future. What can you expect to see? Amazing gains in student writing and critical thinking.

BHP delivers a big picture look at the world, and helps students develop a framework to organize what they’re learning both in and out of school. After they leave your class, students will have a better understanding of how we got here, where we’re going, and how they fit in. It’s a place that was 13.8 billion years in the making.

Proven impact. Big History students show clear, demonstrated gains in reading, writing, and content knowledge.

Free, open, and online. All lessons are instantly accessible, evaluated and updated regularly, highly customizable, and free to learners and educators everywhere. More than 1,600 teachers and 80,000 students are teaching and taking the course each year. Here are just a few sample course plans:

Skills-focused approach. Engaged students learn and retain more. BHP students develop a set of intellectual tools that help them think critically, tie together big ideas, and build informed arguments—and practice these skills across disciplines.

Invested in Teachers. Teachers can spend a ton of time cobbling together curricula from free resources. That’s not BHP. This is a full curriculum complete with in-person and online professional development, a vibrant teacher community, and other free out-of-the-box tools that help free precious time to refocus on individual student instruction.

Register to teach Big History

United States school information provided by

Connect with Big History Project

Join us on Facebook
For updates on the course, Big History updates, and special content features.
Follow us on Twitter
To get breaking news and perspective from the Big History community across the world!