3rd millennium

Millennia:
Centuries:
  • 21st century
  • 22nd century
  • 23rd century
  • 24th century
  • 25th century
  • 26th century
  • 27th century
  • 28th century
  • 29th century
  • 30th century

In contemporary history, the third millennium is the current millennium in the Anno Domini or Common Era, under the Gregorian calendar. It began on 1 January 2001 (MMI) and will end on 31 December 3000 (MMM), spanning the 21st to 30th centuries.

Ongoing futures studies seek to understand what will likely continue and what could plausibly change in this period and beyond.

Predictions and forecasts not included on this timeline

21st century

2000s

2010s

2020s

2030s

2040s

2050s

2060s

2070s

  • 2070: According to an announcement made by Indian prime minister Narendra Modi in 2021, India will be carbon neutral.
  • 2076: Tricentennial of the United States of America.
  • 2079: For computer software using unsigned 16-bit binary day counts and an epoch of 1 January 1900, the counts will overflow after 65,536 (216) days, which will occur on 6 June 2079.

2080s

2090s

2100s

22nd century

2100s

2110s

2140s

  • 2140: All of the roughly 21 million Bitcoins are expected to be mined.

2150s

  • 2155: The Year type in MySQL supports dates up to 31 December 2155.

2160s

2170s

  • 2178: On 23 March, Pluto will have completed its first full orbit since its discovery in 1930.

2180s

  • 2182: On 24 September, asteroid 101955 Bennu has a 1-in-2,700 chance of impacting Earth.

23rd century

24th century

  • 2333: It is projected that the Dounreay nuclear site will be safe to use for other purposes.
  • 2353: The date of Easter as conventionally calculated will be five weeks earlier than its hypothetical date according to astronomical principles, in a "negative equinoctial paradox". Along with 2372, this will be one of only two such occurrences between 2020 and 4000.
  • 2372: The date of Easter will see another "negative equinoctial paradox", this time four weeks earlier than its hypothetical date. This will be the last such occurrence before the year 4000.
  • 2386: If not repealed or otherwise voided, the Treaty of Windsor (1386) between England and Portugal, currently the oldest military alliance currently still in effect, will have stood for one thousand years.
  • 2391: Palm Sunday and Saint Patrick's Day will coincide for the first time since 1940; the "wearing of the shamrock and the palm together" was seen as presaging a great event in Ireland.
  • 2400: The first century leap year since 2000.

25th century

  • 2425: If not repealed or overridden, the annual funding increase of $325 per student to Wisconsin public schools, which began in 2023, will end.
  • 2439 (estimated): The "Across the Universe" message broadcast by NASA in 2008 will reach Polaris.

26th century

  • c. 2500: Climate projections predict a barren landscape for the Amazon rainforest amid low water levels due to vegetation decline.

27th century

28th century

  • Earth will experience 241 lunar eclipses.

29th century

30th century

  • 2999:
    • The Longplayer composition is set to finish on 31 December 2999, marking the end of the thousand-year piece of music, which began on 1 January 2000.

See also


This page was last updated at 2024-03-17 00:31 UTC. Update now. View original page.

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