Finland

Historical eventApril 42023

Finland

Finland becomes a member of NATO after Turkey accepts its membership request.

Everything on April 4Original source

In context

When
Tuesday, April 4 20233 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
21st century · 2020s
Recorded from
Wikipedia “On this day” feed

At a glance

Dates: From 2023.

What happened

Finland, officially the Republic of Finland, is a Nordic country in Northern Europe. It borders Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland to the south, opposite Estonia. Its capital and largest city is Helsinki. Finland has a population of 5.7 million. The official languages are Finnish and Swedish, the mother tongues of 83.5 percent and 5.0 percent of the population, respectively.

April 4 through the years

Other entries on the same calendar day, in order.

  1. 1997Space Shuttle Columbia
  2. 2002MPLA
  3. 2009France
  4. 20102010 Baja California earthquake
  5. 2011Georgian Airways Flight 834
  6. 20132013 Thane building collapse
  7. 2017Khan Shaykhun chemical attack
  8. 2020National day of mourning
  9. 2023Finland
  10. 2024Russo-Ukrainian war
  11. 2025Impeachment of Yoon Suk Yeol

Also in 2023

  • September 11Derna, LibyaThe Libyan city of Derna experiences catastrophic floods after Storm Daniel causes two dams to collapse, killing thousands of people.
  • January 3Jurong Bird ParkSingapore's Jurong Bird Park permanently closes.
  • August 14Donald TrumpFormer U.S. president Donald Trump is charged in Georgia along with 18 others in attempting to overturn the results of the 2020 election…
  • July 5Ariane 5The last Ariane 5 rocket is launched, carrying the Heinrich Hertz and Syracuse 4B satellites.
  • May 4Mladenovac and Smederevo shootingsNine people are killed and thirteen injured in a spree shooting in Mladenovac and Smederevo, Serbia. It is the second mass shooting in th…
  • October 142023 Australian Indigenous Voice referendumAustralians vote to reject a constitutional amendment that would have established an Indigenous Voice to Parliament.
  • January 182023 Brovary helicopter crashA helicopter crash in Ukraine leaves 14 people dead, including the country's Interior Minister, Denys Monastyrsky.
  • June 8Donald TrumpFormer US President Donald Trump is indicted on federal charges of misusing classified information.

Everything we record for 2023 →

Sources

Cite this page

“Finland”, What's On This Date, https://whatsonthisdate.com/app/event/finland-2023-april-4, 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 Finland happen?

April 4 2023 — 3 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.

Text adapted from Wikipedia under CC BY-SA 4.0 and from Wikidata (CC0). Images come from Wikimedia Commons; credit and licence are shown with each image. Editorial entries are © What's On This Date. Sources & licensing · How this site works.