Alaska-Yukon-Pacific Exposition

Excerpt from the Wikipedia article

The Alaska–Yukon–Pacific Exposition, acronym AYP or AYPE, was a world's fair held in Seattle in 1909 publicizing the development of the Pacific Northwest. It was originally planned for 1907 to mark the 10th anniversary of the Alaska Gold Rush, but the organizers learned of the Jamestown Exposition being held that same year and rescheduled.

Excerpt from the Wikipedia article „Alaska–Yukon–Pacific Exposition“ (en.wikipedia.org), CC BY-SA 4.0.