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John L. O'Sullivan

Mentioned in 2 analyzed podcast episodes across 2 shows

Appears On

Omnibus American History Hit

Episode Appearances

Omnibus · Mar 31, 2026

The Filibuster War (Entry 468.RE0602)

“Coined the term 'manifest destiny' in the 1840s, providing ideological justification for American expansionism”

William Walker filibustering campaignsManifest destiny ideology and American exceptionalism19th-century Central American geopolitics

American History Hit

American History Hit · Mar 2, 2026

Life and Death on the Oregon Trail | The Frontier

“New York newspaper editor who coined the term 'Manifest Destiny' in the mid-1840s to describe American expansionist ideology”

Oregon Trail Migration (1840s-1850s)Westward Expansion and Manifest DestinyNative American-Settler Relations