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This Day in American History

August 25

1 historic event on this date

Legislation1916

National Park Service Established

President Woodrow Wilson signed the National Park Service Organic Act, creating the National Park Service within the Department of the Interior. The act charged the agency with preserving natural and historic sites "for the enjoyment, education, and inspiration of this and future generations."

Why It Matters

The National Park Service embodies the democratic principle that America's natural wonders and historic sites belong to all citizens, preserving the nation's heritage as a public trust.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles