On this day, December 20

Pins on December 20 going back to 1957: 18.

In 1,999: Macau is handed over to China by Portugal. (Wikipedia)

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2025

Anime09/19/2026@AnimeDesk
Kaiju No. 8: Final Chapter Announced
Starts 12/20/2025CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins87% CONFIDENCEOverall confidence: 87%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 better315 days ago
MyAnimeList's^[1][2] news report dates the Final Chapter announcement to the Jump Super Stage on Saturday, December 20, 2025.
The Kaiju No. 8 anime will adapt the manga's ending in a Final Chapter, announced with a teaser promo on the franchise's Jump Festa 2026 stage.

On this day, December 20 · Chronopin

2024

Movie09/20/2026@FilmDesk
Sonic the Hedgehog 3 (2024) Opens in Theaters
5555 Melrose Ave, Los Angeles, CA 90038Paramount Pictures
Starts 12/20/2024CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins90% CONFIDENCEOverall confidence: 90%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 better71%1.9 years ago
Released theatrically on December 20, 2024 per the film's Wikipedia^[1] infobox.
Sonic the Hedgehog 3 is a 2024 action-adventure comedy film based on the Sonic video game series. It is the third in the Sonic film series, it was directed by Jeff Fowler and written by Pat Casey, Josh Miller, and John Whittington.
Law10/04/2026@LawDesk
Delaware Jury Sides With Qualcomm in Arm's Nuvia Licence Suit
J. Caleb Boggs Federal Building, 844 North King Street, Wilmington, New Castle County, Delaware, 19801, United StatesArm Holdings
Starts 12/20/2024CONFIRMEDDate 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 better1.9 years ago
ServeTheHome's^[1] report is dated December 20, 2024 ("With today's verdict"), and BNN Bloomberg's^[5] story is dated 2024/12/20.
On 20 December 2024 a Delaware federal jury found that Qualcomm had not breached its Nuvia-related agreement with Arm and that its custom CPUs are licensed, while deadlocking on whether Nuvia itself breached its licence.
Movie10/05/2026@FilmDesk
Mufasa: The Lion King Opens in US Theaters
500 South Buena Vista Street, Burbank, California, United StatesWalt Disney Pictures
Starts 12/20/2024CONFIRMEDDate 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 better1.9 years ago
Wikipedia^[1][5] says it premiered at the Dolby Theatre on 9 December 2024 and was released in the US on 20 December; Rotten Tomatoes^[2] lists a wide release on 20 December 2024.
Barry Jenkins' Mufasa: The Lion King, a photoreal prequel and sequel to the 2019 film, opened in US theaters on 20 December 2024. It grossed about US$723 million worldwide.
Energy10/18/2026@EnergyDesk
Naugatuck Avenue: Connecticut Selects 200 MW Jupiter Power Storage Proposal
Naugatuck Avenue Storage Facility, Naugatuck Avenue Industrial Corridor, Milford, CT 06460Jupiter Power
Starts 12/20/2024CONFIRMEDDate 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 3 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 better1.9 years ago
The cited project source establishes 2024-12-20. Preserve the stated precision; a year, month or quarter anchor is not an announced exact opening day.
Connecticut selected Jupiter Power’s 200 MW Naugatuck Avenue battery project in its December 2024 solicitation. Selection begins contract negotiations; it does not establish construction, a $240 million budget or an opening date.

2019

Sports09/15/2026@BuildDesk
Mandalay Bay's Temporary Pool Hosts the ISL's First Grand Final in Las Vegas
Mandalay Bay Events Center, 3950 S Las Vegas Blvd, Las Vegas, NV 89119, USAInternational Swimming League
12/20/2019 - 12/21/2019CONFIRMEDDate 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 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 better6.9 years ago
SwimSwam and Wikipedia's^[3] 2019 International Swimming League article both confirm the Las Vegas Grand Final ran 20-21 December 2019 at Mandalay Bay.
Myrtha Pools installed a 25-meter, 1-million-liter competition pool inside the Mandalay Bay Events Center in seven days for the International Swimming League's inaugural Grand Final, held 20-21 December 2019.
Movie09/20/2026@FilmDesk
Star Wars: The Rise of Skywalker (2019) Opens in Theaters
1 Letterman Dr, San Francisco, CA 94129Lucasfilm
Starts 12/20/2019CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins90% CONFIDENCEOverall confidence: 90%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 better56%6.9 years ago
Released theatrically on December 20, 2019 per the film's Wikipedia^[1] infobox.
Star Wars: The Rise of Skywalker, also known as Star Wars: Episode IX – The Rise of Skywalker, is a 2019 American epic space opera film produced, co-written, and directed by J. J. Abrams.
Energy10/04/2026@EnergyDesk
ExxonMobil Starts Oil Production at Guyana's Liza Field
Georgetown, GuyanaExxonMobil
Starts 12/20/2019CONFIRMEDDate 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 better6.9 years ago
ExxonMobil's^[1][4] news release is dated 20 December 2019 (published 06:00Z on its site, 8:30 PM CST on the investor page); Stabroek News^[3] carried it the same day.
On 20 December 2019 ExxonMobil announced oil production had started from the Liza field offshore Guyana, ahead of schedule and less than five years after the first discovery, the first of several projects in the Stabroek Block.
Food10/12/2026FoodDesk
Song Ji Shi — Foshan restaurant guide
容桂街道合祥路3号(联合电子厂对面)
Starts 12/20/2019ESTIMATEDDate confidence: ESTIMATEDA target, not a fixed dateHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all ESTIMATED pins68% CONFIDENCEOverall confidence: 68%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 from 50% to 74% confidence6.9 years ago
Operating-by upper bound supported by a dated customer review on 2019-12-20. This is not a confirmed opening date; the branch is included only in Top restaurants.^[1]
Hotpot at 容桂街道合祥路3号(联合电子厂对面). The branch listing names Shrimp Paste / 蝦滑, Pork Meatballs / 豬肉丸, Bamboo Intestine / 竹腸. See the sample menu for published prices and source notes.