Historical eventDecember 61904

Theodore Roosevelt

President Theodore Roosevelt announced the Roosevelt Corollary to the Monroe Doctrine, justifying the exercise of "international police power" by the U.S. in the Western Hemisphere.

Everything on December 6Original source

In context

When
Tuesday, December 6 1904122 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
20th century · 1900s
Recorded from
Wikipedia “On this day” feed

Russia, Greece and some other countries used the Julian calendar into the early 20th century, so local records may show a date up to 13 days earlier.

At a glance

Dates: From 1904.

What happened

Theodore Roosevelt Jr. was the 26th president of the United States, serving from 1901 to 1909. Previously serving for six months as vice president under William McKinley, Roosevelt became president after McKinley's assassination in 1901. He was 42 years old upon his first inauguration, making him the youngest person to hold the office.

December 6 through the years

Other entries on the same calendar day, in order.

  1. 1904Theodore Roosevelt
  2. 1991Yugoslav Wars
  3. 1992Babri Masjid
  4. 1995Food and Drug Administration
  5. 1998Venezuela
  6. 1999A&M Records, Inc. v. Napster, Inc.
  7. 1999Recording Industry Association of America
  8. 2005Islamic Republic of Iran Air Force
  9. 2006NASA
  10. 20152015 Venezuelan parliamentary election
  11. 2017Donald Trump

Also in 1904

  • October 27Early history of the IRT subwayThe first underground segment of the New York City Subway opened, connecting New York City Hall (station pictured) with Harlem.
  • January 7Marconi CompanyThe Marconi International Marine Communication Company specified CQD (audio featured) as the distress signal to be used by its operators.
  • June 15PS General SlocumA fire aboard the steamboat SS General Slocum in New York City's East River kills 1,000.
  • January 8Blackstone LibraryBlackstone Library (pictured), the first branch of the Chicago Public Library system, was dedicated.
  • December 3Himalia (moon)Himalia, Jupiter's largest irregular moon, was discovered by Charles Dillon Perrine at the Lick Observatory in California.
  • June 28SS NorgeIn the worst maritime disaster involving a Danish merchant ship, SS Norge ran aground on Hasselwood Rock and sank in the North Atlantic,…
  • March 6Scottish National Antarctic ExpeditionScottish National Antarctic Expedition: Led by William Speirs Bruce (pictured), the Antarctic region of Coats Land was discovered by the…
  • April 24RussificationRealizing that the Russification of Lithuania was not working, the Russian Empire lifted the 40-year-old ban on publications written in L…

Everything we record for 1904 →

Sources

Cite this page

“Theodore Roosevelt”, What's On This Date, https://whatsonthisdate.com/app/event/theodore-roosevelt-1904-december-6, accessed October 27, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about this entry

When did Theodore Roosevelt happen?

December 6 1904 — 122 years ago, on a Tuesday.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.

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