Some topics in Oregon History are so big that they require a longer entry. 

Topics such as the Oregon Trail, Woman's Suffrage, Blacks in Oregon, and the Columbia River are too complex to cover in a standard-sized encyclopedia entry. The OE asked experts to write essays on these larger topics. Each essay includes historical photographs and links to digitized primary source documents on the Oregon History Project.

Blacks in Oregon,  by Darrell Millner	Cartography of Oregon, 1507-1848, by James Walker	Chinese Americans in Oregon, by Douglas Lee

Columbia River,  by William Lang	Confederated Tribes of the Grand Ronde, by David Lewis	Disease Epidemics among Indians, 1770s-1850s,  by Robert Boyd

Gay and Lesbian Rights Movement, by Peter Boag	High Desert,  by Jeff LaLande	Japanese American Wartime Incarcerationin Oregon, by Craig Collisson

Japanese Americans in Oregon, by George Katagiri	Latinos in Oregon, by Jerry Garcia	Lewis and Clark Expedition, by William Lang

National Forests in Oregon, by Gerald Williams	Oregon and the Film Industry, by Edwin Battistella	Oregon Literature, 1814-1920, by Richard Etulain

Oregon Literature, 1920-present, by Richard Etulain	Oregon Trail, by William Lang	Portland, by Carl Abbott

Termination and Restoration, by Donald Fixico	Willamette River, by William G. Robbins	Willamette Valley Treaties, by David Lewis

Woman Suffrage in Oregon,  by Kimberly Jensen	Mount Hood, by Jon Bell	Fort Vancouver, by Greg Shine