This is a record of material that was recently featured on the Main Page as part of Did you know (DYK). Recently created new articles, greatly expanded former stub articles and recently promoted good articles are eligible; you can submit them for consideration.
Archives are generally grouped by month of Main Page appearance. (Currently, DYK hooks are archived according to the date and time that they were taken off the Main Page.) To find which archive contains the fact that appeared on Did you know, go to article's talk page and follow the archive link in the DYK talk page message box.
Did you know...
30 September 2021
- 00:00, 30 September 2021 (UTC)
![Broken Circle/Spiral Hill in 2021](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Broken_Circle_-_Spiral_Hill%2C_Robert_Smithson_-_Q2867150_-_4.jpg/121px-Broken_Circle_-_Spiral_Hill%2C_Robert_Smithson_-_Q2867150_-_4.jpg)
Broken Circle/Spiral Hill in 2021
29 September 2021
- 00:00, 29 September 2021 (UTC)
![James McDivitt](https://upload.wikimedia.org/wikipedia/commons/thumb/2/28/Astronaut_James_A._McDivitt_in_Air_Force_uniform.jpg/125px-Astronaut_James_A._McDivitt_in_Air_Force_uniform.jpg)
James McDivitt
28 September 2021
- 00:00, 28 September 2021 (UTC)
![Monika Salzer](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Monika_Salzer_7291_%28cropped%29.jpg/142px-Monika_Salzer_7291_%28cropped%29.jpg)
Monika Salzer
27 September 2021
- 00:00, 27 September 2021 (UTC)
![Canadian Police and Peace Officers' Memorial](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Gatineau_%289859155514%29.jpg/162px-Gatineau_%289859155514%29.jpg)
Canadian Police and Peace Officers' Memorial
26 September 2021
- 12:00, 26 September 2021 (UTC)
![Schlosspark Biebrich](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Luftbild_Wiesbaden_Schlosspark_mit_Schloss_Biebrich.jpg/140px-Luftbild_Wiesbaden_Schlosspark_mit_Schloss_Biebrich.jpg)
Schlosspark Biebrich
- 00:00, 26 September 2021 (UTC)
![Remains of the Musalla complex](https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Herat_Remains_of_Musallah_complex.jpg/114px-Herat_Remains_of_Musallah_complex.jpg)
Remains of the Musalla complex
25 September 2021
- 12:00, 25 September 2021 (UTC)
- 00:00, 25 September 2021 (UTC)
[[File:|140px|Elizabeth II presenting the Air Force Cross to Andy Carswell ]]
Elizabeth II presenting the Air Force Cross to Andy Carswell
24 September 2021
- 12:00, 24 September 2021 (UTC)
- 00:00, 24 September 2021 (UTC)
![Foster-Daimler tractor](https://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Experimental_Tractors_of_the_First_World_War_Q70906.jpg/161px-Experimental_Tractors_of_the_First_World_War_Q70906.jpg)
Foster-Daimler tractor
23 September 2021
- 12:00, 23 September 2021 (UTC)
![CitySpire](https://upload.wikimedia.org/wikipedia/commons/thumb/6/63/Cityspire_9th_54th_jeh.jpg/84px-Cityspire_9th_54th_jeh.jpg)
CitySpire
- 00:00, 23 September 2021 (UTC)
![Imperial Airways route map (1935)](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Imperial_routes_April_1935.jpg/160px-Imperial_routes_April_1935.jpg)
Imperial Airways route map (1935)
22 September 2021
- 12:00, 22 September 2021 (UTC)
![Mack AC](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/111-SC-32795_-_NARA_-_55224744-cropped.jpg/178px-111-SC-32795_-_NARA_-_55224744-cropped.jpg)
Mack AC
- 00:00, 22 September 2021 (UTC)
21 September 2021
- 12:00, 21 September 2021 (UTC)
![Azayamankawin](https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Old_Betz_Sioux_Squaw_by_Martin.jpg/109px-Old_Betz_Sioux_Squaw_by_Martin.jpg)
Azayamankawin
- 00:00, 21 September 2021 (UTC)
- ... that Monique Corzilius did not realize that she was the girl featured in the famous "Daisy" advertisement (pictured) until the 2000s, when she searched for the commercial on the Internet?
- ... that Victorian post office official William Rundell also collected stamps in his spare time, acquiring 48 copies of the "Sydney view" stamps of New South Wales?
- ... that the butterfly rare skipper was only known from five rivers in the United States until sometime in the 1980s?
- ... that John Henry Dunn resigned from the Executive Council of Upper Canada only three weeks after his appointment, throwing away a post he had sought for 16 years, on a matter of political principle?
- ... that the Lithuanian town of Lyduvėnai had one of the world's largest wooden bridges?
- ... that the construction of the Erawan Hotel was delayed by so many mishaps that a shrine to Brahma was built to ward off ill fortune?
- ... that Hakan Akkaya became Turkey's first wheelchair fencer in 2013?
- ... that the Green Guerillas threw "seed grenades" into abandoned lots in New York City?
20 September 2021
- 12:00, 20 September 2021 (UTC)
![Temple of Jupiter Apenninus depicted on the Tabula Peutingeriana](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/IupiterPoeninusAtTabulaPeutingeriana1888ByMillerSheet03Cropped.jpg/164px-IupiterPoeninusAtTabulaPeutingeriana1888ByMillerSheet03Cropped.jpg)
Temple of Jupiter Apenninus depicted on the Tabula Peutingeriana
- 00:00, 20 September 2021 (UTC)
![Isatou Nyang](https://upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Gambian_Paralympic_Athlete_Isatou_Nyang_01.png/140px-Gambian_Paralympic_Athlete_Isatou_Nyang_01.png)
Isatou Nyang
19 September 2021
- 12:00, 19 September 2021 (UTC)
![Southern greater glider](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Petauroides_volans.jpg/107px-Petauroides_volans.jpg)
Southern greater glider
- 00:00, 19 September 2021 (UTC)
![Cambus O' May bridge](https://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Cambus_o%27_May_Suspension_Bridge_%28geograph_6705813%29.jpg/140px-Cambus_o%27_May_Suspension_Bridge_%28geograph_6705813%29.jpg)
Cambus O' May bridge
18 September 2021
- 12:00, 18 September 2021 (UTC)
![Picture from the Sally Fox collection](https://upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Fox_mc638fb.08_%289494372545%29.jpg/112px-Fox_mc638fb.08_%289494372545%29.jpg)
Picture from the Sally Fox collection
- 00:00, 18 September 2021 (UTC)
![TD-2 tower in the Mojave National Preserve, California](https://upload.wikimedia.org/wikipedia/commons/thumb/8/86/Microwave_tower_in_the_Mojave_National_Preserve%2C_California_%2828795031790%29.jpg/170px-Microwave_tower_in_the_Mojave_National_Preserve%2C_California_%2828795031790%29.jpg)
TD-2 tower in the Mojave National Preserve, California
17 September 2021
- 00:00, 17 September 2021 (UTC)
![Naga Thein Hlaing](https://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Dr_Naga_Thein_Hlaing.jpg/138px-Dr_Naga_Thein_Hlaing.jpg)
Naga Thein Hlaing
16 September 2021
- 00:00, 16 September 2021 (UTC)
![Klassische Philharmonie Bonn](https://upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Klassische_Philharmonie_Bonn_2011.jpg/171px-Klassische_Philharmonie_Bonn_2011.jpg)
Klassische Philharmonie Bonn
15 September 2021
- 00:00, 15 September 2021 (UTC)
![Portrait of Maungwudaus](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ea/Portrait_of_Maungwudaus.jpg/127px-Portrait_of_Maungwudaus.jpg)
Portrait of Maungwudaus
14 September 2021
- 00:00, 14 September 2021 (UTC)
![Illustration of shackled captives on the Marie Séraphique](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Slave_deck_of_the_Marie_S%C3%A9raphique_rotated.jpg/240px-Slave_deck_of_the_Marie_S%C3%A9raphique_rotated.jpg)
Illustration of shackled captives on the Marie Séraphique
13 September 2021
- 00:00, 13 September 2021 (UTC)
![Bessie Anstice Baker](https://upload.wikimedia.org/wikipedia/commons/thumb/5/51/Bessie_Anstice_Baker.jpg/116px-Bessie_Anstice_Baker.jpg)
Bessie Anstice Baker
12 September 2021
- 00:00, 12 September 2021 (UTC)
![Flight 175 explodes after hitting the South Tower.](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/UA_Flight_175_hits_WTC_south_tower_9-11_edit.jpeg/150px-UA_Flight_175_hits_WTC_south_tower_9-11_edit.jpeg)
Flight 175 explodes after hitting the South Tower.
11 September 2021
- 00:00, 11 September 2021 (UTC)
![Portrait of Waters by Thomas Lord Busby](https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Billy_Waters%2C_a_one-legged_busker._Coloured_engraving_by_T.L_Wellcome_V0007298.jpg/112px-Billy_Waters%2C_a_one-legged_busker._Coloured_engraving_by_T.L_Wellcome_V0007298.jpg)
Portrait of Waters by Thomas Lord Busby
10 September 2021
- 00:00, 10 September 2021 (UTC)
![Nele Hertling](https://upload.wikimedia.org/wikipedia/commons/thumb/0/05/Nele_Hertling.jpg/121px-Nele_Hertling.jpg)
Nele Hertling
9 September 2021
- 00:00, 9 September 2021 (UTC)
![Method of moments simulations](https://upload.wikimedia.org/wikipedia/commons/thumb/0/07/Negative_reflection_from_meta-mirrors.jpg/201px-Negative_reflection_from_meta-mirrors.jpg)
Method of moments simulations
8 September 2021
- 00:00, 8 September 2021 (UTC)
![Hanneke Kappen, 1983](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Hanneke_Kappen.png/130px-Hanneke_Kappen.png)
Hanneke Kappen, 1983
7 September 2021
- 00:00, 7 September 2021 (UTC)
6 September 2021
- 00:00, 6 September 2021 (UTC)
![Miguelina Acosta Cárdenas](https://upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Miguelina_Acosta_Cardenas_Lima_26_ene_1920.jpg/120px-Miguelina_Acosta_Cardenas_Lima_26_ene_1920.jpg)
Miguelina Acosta Cárdenas
5 September 2021
- 00:00, 5 September 2021 (UTC)
![Malan Bridge](https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Fran%C3%A7oise_Foliot_-_Afghanistan_-_019.jpg/171px-Fran%C3%A7oise_Foliot_-_Afghanistan_-_019.jpg)
Malan Bridge
4 September 2021
- 00:00, 4 September 2021 (UTC)
![Solow Building](https://upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Solow_Building_New_York_August_2012.jpg/121px-Solow_Building_New_York_August_2012.jpg)
Solow Building
3 September 2021
- 12:00, 3 September 2021 (UTC)
![Columbia Eneutseak](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b7/Woman_from_Labrador_at_Alaska-Yukon-Pacific_Exposition%2C_Seattle%2C_1909_%28MOHAI_10958%29.jpg/125px-Woman_from_Labrador_at_Alaska-Yukon-Pacific_Exposition%2C_Seattle%2C_1909_%28MOHAI_10958%29.jpg)
Columbia Eneutseak
- 00:00, 3 September 2021 (UTC)
![Carnegie Hall Tower](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/Carnegie_Hall_Tower.JPG/121px-Carnegie_Hall_Tower.JPG)
Carnegie Hall Tower
2 September 2021
- 12:00, 2 September 2021 (UTC)
![British Club building in Bangkok, 1912](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/British_Club_Bangkok_postcard_c._1912.jpg/177px-British_Club_Bangkok_postcard_c._1912.jpg)
British Club building in Bangkok, 1912
- 00:00, 2 September 2021 (UTC)
![Megan Phelps-Roper](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6b/Megan_Phelps-Roper_266660_%28cropped%29.jpg/140px-Megan_Phelps-Roper_266660_%28cropped%29.jpg)
Megan Phelps-Roper
1 September 2021
- 12:00, 1 September 2021 (UTC)
![Gleninsheen gorget](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Gleninsheen_gold_gorget.jpg/140px-Gleninsheen_gold_gorget.jpg)
Gleninsheen gorget
- 00:00, 1 September 2021 (UTC)
![Julie Hayden](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Miss_Julie_Hayden_Harper%27s_Weekly_October_3_1874%2C_813.jpg/140px-Miss_Julie_Hayden_Harper%27s_Weekly_October_3_1874%2C_813.jpg)
Julie Hayden