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This Day in American History

October 27

1 historic event on this date

Historical1858

Theodore Roosevelt Born

Theodore Roosevelt was born in New York City. He would become the 26th President, known for trust-busting, conservation, the Square Deal, and establishing the national parks system. He was also the youngest person to assume the presidency.

Why It Matters

Roosevelt expanded the role of the federal government in regulating business and protecting natural resources, reshaping the relationship between government, industry, and the public interest.

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