On this day, March 21

Pins on March 21 going back to 1988: 19.

In 1,844: The Baháʼí calendar, used in the Baháʼí Faith, began. (Wikipedia)

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2026

Sports10/01/2026@SportDesk
Bank of China Wuhan Marathon Opens Registration for 30,000 Runners on 22 March 2026
Wuhan, Hubei, ChinaBank of China
Starts 03/21/2026 11:30PM UTCSCHEDULEDDate confidence: SCHEDULEDGiven as scheduledHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all SCHEDULED pins75% CONFIDENCEOverall confidence: 75%How well the pin's source and references back up its dates.Weighted average of how firmly 1 reference, the source included, supports the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better224 days ago
Bank of China's^[1] own announcement (11 December 2025) gives the race date and 7:30 AM start, the registration window and the entry quotas.
Bank of China is title sponsor of the Wuhan Marathon for a fourth straight year; the race runs on 22 March 2026 with 17,000 marathon and 13,000 half-marathon places, and registration is open 12-19 December 2025.

On this day, March 21 · Chronopin

2025

Elections09/25/2026@PoliticsDesk
Netumbo Nandi-Ndaitwah Is Sworn In as Namibia's First Woman President
State House, Engelberg Street, Auasblick, Windhoek, Khomas, 10000, Namibia
Starts 03/21/2025CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins82% CONFIDENCEOverall confidence: 82%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better1.6 years ago
Al Jazeera^[1], published 21 Mar 2025: "Netumbo Nandi-Ndaitwah has been sworn in as Namibia's first woman president" at a ceremony on Friday.
SWAPO's Netumbo Nandi-Ndaitwah took the oath at State House in Windhoek on 21 March 2025, Namibia's 35th Independence Day, becoming the country's first woman president after winning 58% of the vote.
Defense09/27/2026@DefenseDesk
US Air Force Picks Boeing to Build the F-47 Sixth-Generation Fighter
Boeing, 929, Long Bridge Drive, National Landing, Crystal City, Arlington, Arlington County, Virginia, 22202, United StatesBoeing
Starts 03/21/2025CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins82% CONFIDENCEOverall confidence: 82%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better1.6 years ago
Boeing's^[1] release, datelined 'ARLINGTON, Va., March 21, 2025': 'The U.S. Air Force announced Boeing ... has been awarded a contract to design, build and deliver its next-generation fighter aircraft.'
The Air Force awarded Boeing the Next Generation Air Dominance contract to design, build and deliver the F-47, the first US sixth-generation fighter and the F-22's successor, beating Lockheed Martin; Trump announced it in the Oval Office.
Movie10/05/2026@FilmDesk
Disney's Live-Action Snow White Opens in US Theaters
500 South Buena Vista Street, Burbank, California, United StatesWalt Disney Pictures
Starts 03/21/2025CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins84% CONFIDENCEOverall confidence: 84%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better1.6 years ago
Wikipedia^[1][5] says it premiered at the Alcazar of Segovia on 12 March 2025 and was released in the US on 21 March; Rotten Tomatoes^[2] lists a wide release on 21 March 2025.
Marc Webb's live-action Snow White, starring Rachel Zegler and Gal Gadot, opened in US theaters on 21 March 2025 after a Segovia premiere. It grossed US$205.7 million worldwide on one of Disney's largest remake budgets.
Travel10/08/2026@TravelDesk
Heathrow Closes for a Day After a Substation Fire Cuts Its Power
Heathrow Airport Terminal 3, Cromer Road West, Harmondsworth, London Borough of Hillingdon, Greater London, England, TW6 1QT, United KingdomHeathrow Airport
Starts 03/21/2025CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins75% CONFIDENCEOverall confidence: 75%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better1.6 years ago
Wikipedia^[1][2][4]: the fire began on 20 March 2025 at 23:23 GMT and Heathrow^[3] was closed for around 16 hours on 21 March; normal operations resumed on the 22nd.
A fire at the North Hyde electrical substation in Hayes cut power to Heathrow on 21 March 2025, closing Europe's busiest airport for about 16 hours and disrupting around 200,000 passengers.

2024

Sports10/03/2026@FashionDesk
Nike to Replace Adidas as German National Teams' Kit Supplier From 2027
Kennedyallee, Sachsenhausen Süd, Sachsenhausen, Süd, Frankfurt, Hesse, 60598, GermanyNike
03/21/2024 - 12/31/2034CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins81% CONFIDENCEOverall confidence: 81%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better2.6 years ago
The DFB's^[1] release is dated 21.03.2024: it 'will enter into an equipment partnership with Nike Inc from 2027 to 2034' ('ab 2027 bis 2034'); the period end is taken as 1 January 2035 (exclusive).
The German football federation (DFB) announced on 21 March 2024 that Nike will equip all its national teams from 2027 to 2034, ending a partnership with Adidas of more than seven decades; the DFB said Nike made by far the best financial offer.
Energy10/18/2026@EnergyDesk
Oak Run Solar: Approved 800 MW Solar / 300 MW Storage Proposal
State Routes 38 / 29 near Plumwood, Madison County, Ohio; Census-geocoded intersection matching operator project-map contextOak Run Solar Project, LLC
Starts 03/21/2024CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins95% CONFIDENCEOverall confidence: 95%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better2.6 years ago
The confirmed event is the March 21, 2024 approval announcement. A currently verified commissioning date is unavailable.
Oak Run’s operator confirms approval of its up-to-800 MW Madison County proposal near Plumwood. OPSB’s published case summary includes up to 300 MW storage, and its March 21, 2024 announcement records the approval.

2023

AI10/04/2026@EnterpriseDesk
Adobe Unveils Firefly, Its Family of Generative AI Models
Adobe Headquarters, 345 Park Avenue, San Jose, California, United StatesAdobe
Starts 03/21/2023CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins85% CONFIDENCEOverall confidence: 85%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better3.6 years ago
Adobe's^[1] newsroom release is dated 'Tuesday, March 21, 2023 09:16 AM' and says Adobe 'launched a beta for Firefly today'; Gigazine^[4] confirms 'On March 21, 2023'.
On 21 March 2023 Adobe introduced Firefly, a family of creative generative AI models, and opened a beta of the first model for images and text effects, trained on licensed and public-domain content.
Food10/26/2026@DrinksDesk
White Claw Launches Vodka + Soda Cans in Four Flavors in the US
Mark Anthony Group, Vancouver, British Columbia, CanadaMark Anthony Brewing
Starts 03/21/2023ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins63% CONFIDENCEOverall confidence: 63%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence3.6 years ago
VinePair^[1] (updated 21 March 2023, a Tuesday) reports the lineup was announced 'on Tuesday'; Fox and Shanken say it was 'rolling out' in select US markets from 22 March with no shelf date, so the announcement day is used.
Mark Anthony Brewing's White Claw announced its first vodka-and-soda cans on 21 March 2023: 4.5% ABV, 100 calories, in Pineapple, Peach, Wild Cherry and Watermelon.

2014

Architecture09/15/2026@BuildDesk
Zaha Hadid's Dongdaemun Design Plaza Opens in Seoul
Dongdaemun Design Plaza, Jung District, Seoul, South KoreaZaha Hadid Architects
Starts 03/21/2014CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins83% CONFIDENCEOverall confidence: 83%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better12.6 years ago
Happened as dated, per the source^[1]: "it was officially inaugurated on 21 March 2014."
Zaha Hadid Architects' fluid, BIM-engineered Dongdaemun Design Plaza opened to the public in Seoul, South Korea, transforming a former stadium site into a landmark arts and design hub.
$451M
Food10/11/2026FoodDesk
Jin Chun Xi — Shimao International Plaza — Jinan restaurant guide
Level 4, west building, Shimao International Plaza, 26 Quancheng Road, Lixia District, Jinan, Shandong, China
Starts 03/21/2014ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins86% CONFIDENCEOverall confidence: 86%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better12.6 years ago
Baidu Baike (via search summary) gives the Shimao-plaza entity (registered at Shimao Plaza 4F units 410-415) as founded 2014-03-21, which is a registration date and fits the mall opening on 2014-05-01; actual trading start likely shortly after, so treat as ~March-May 2014. A Douyin post of 2024-06-27 announces a '世茂店扬帆起航' relaunch, so the current operation may be a later relaunch. Estimated: the exact day 2014-03-21 comes from a proxy source (registration, announcement or hotel opening) and is not a confirmed opening day.^[1]
Shandong cooking at Shimao’s west building, with nine-turn braised intestines, sweet-and-sour carp and Spanish-mackerel dumplings.