How many people traveled the Oregon Trail? Facts about historic route.

Maps - Oregon National Historic Trail (U.S. National Park Service)

Messed Up Things That Actually Happened On The Oregon Trail

Pioneer History and A Westward Expansion Timeline

9 Things You May Not Know About the Oregon Trail

The Major Means of Migrating to the American West in the 1800s, by Benjamin Nweke, Lessons from History

Hidden History: When was the Oregon Trail traveled?

The Oregon Trail and Westward Expansion, History & Importance - Lesson

Oregon Trail – Travel guide at Wikivoyage

California Trail Facts California Trail Interpretive Center

History of the Oregon Trail