Historical eventDecember 11822

Pedro I of Brazil

Pedro I was crowned the first emperor of Brazil, seven weeks after his reign began on his 24th birthday.

Everything on December 1Original source

In context

When
Sunday, December 1 1822204 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
19th century · 1820s
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 1822.

What happened

Pedro I was crowned the first emperor of Brazil, seven weeks after his reign began on his 24th birthday.

December 1 through the years

Other entries on the same calendar day, in order.

  1. 1822Pedro I of Brazil
  2. 2001United Russia
  3. 2005Perm Oblast
  4. 2006Same-sex marriage in South Africa
  5. 2009Treaty of Lisbon
  6. 2011Almaty Metro
  7. 2018Oulu child sexual exploitation scandal
  8. 2019Arsenal Women 11–1 Bristol City Women
  9. 2019Vivianne Miedema
  10. 2019COVID-19 pandemic
  11. 2020Arecibo Telescope

Also in 1822

  • June 14Royal Astronomical SocietyIn a paper presented to the Royal Astronomical Society, English mathematician Charles Babbage proposed a difference engine (pictured), an…
  • December 9French Academy of SciencesIn a memoir read to the French Academy of Sciences, Augustin-Jean Fresnel coined the terms linear, circular, and elliptical polarization,…
  • September 7Pedro I of BrazilPedro I declared the independence of Brazil from Portugal, establishing the Empire of Brazil (flag pictured).
  • March 30East FloridaThe United States merged East Florida and West Florida to create the Florida Territory.
  • November 9USS Alligator (1820)USS Alligator engaged three pirate schooners off the coast of Cuba in one of the West Indies anti-piracy operations of the United States.
  • June 6Alexis St. MartinAlexis St. Martin, a Canadian voyageur, was accidentally shot in the stomach; medical investigations of his injury led to a greater under…
  • September 27Lettre à M. DacierIn a letter to the Académie des Inscriptions et Belles-Lettres in Paris, Jean-François Champollion announced his initial successes in dec…
  • May 26Grue Church fireThe deadliest fire in Norwegian history occurred at a church in Grue, killing at least 113 people.

Everything we record for 1822 →

Sources

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“Pedro I of Brazil”, What's On This Date, https://whatsonthisdate.com/app/event/pedro-i-of-brazil-1822-december-1, accessed October 28, 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 Pedro I of Brazil happen?

December 1 1822 — 204 years ago, on a Sunday.

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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