Walt Disney's $17 million theme park, built on former orange groves in Anaheim after a chaotic construction rush, opened to press and invited guests as Disneyland.
Din Tai Fung, 19, Songgao Road, Xicun Village, Xinyi District, Xingya, Taipei, 110, TaiwanDin Tai Fung
ESTIMATED75% CONFIDENCEThe article gives the founding year only - 1958 - so the pin takes that year's last day.[1]
Yang Bing-yi founded Din Tai Fung in Taipei in 1958, first as a cooking-oil retailer and then as a dumpling house when the oil business failed. Its xiaolongbao, pleated to a standard count of folds, turned a single shop on Xinyi Road into a chain across Asia and the United States.
ESTIMATED75% CONFIDENCEThe article's infobox gives the year only - opened 1959 - with no month or day, so the pin takes that year's last day.[1]
Harry Barberian opened his steak house on Elm Street in 1959, in a row of Victorian houses behind Yonge Street, and it has outlasted most of what grew up around it - a dark room of oil paintings and charcoal-grilled beef with one of the deepest wine cellars in Canada dug out beneath it.
CONFIRMED93% CONFIDENCEThe USGS[2][3] catalogue gives 1960-05-22T19:11:20Z as the origin time of event official19600522191120_30; the source[1] states "19:11:14 UTC, 15:11:14 local time", six seconds earlier, and the catalogue value is used here.
A magnitude 9.5 megathrust rupture off southern Chile shook for ten minutes — the strongest earthquake ever instrumentally recorded. Its tsunami crossed the Pacific and struck Hilo, Hawaii, with waves 10.7 m high.
ESTIMATED70% CONFIDENCEWikipedia[3], the Henry Ford museum and Guinness World Records[2] all date the first Unimate installation to 1961, but none give a specific month or day.
In 1961 General Motors installed the Unimate, the world's first industrial robot, at its New Jersey factory to lift and stack hot die-cast metal parts. Industry 4.0 opens its history of factory automation with this machine.
CONFIRMED85% CONFIDENCEThe company and its own museum both date the first Wal-Mart Discount City to 2 July 1962 in Rogers, Arkansas.[1]
Sam Walton opened Wal-Mart Discount City on Rogers' Highway 71, his first store under the name after a decade running Ben Franklin variety stores. The format was the bet: lower margins on everything, in towns the big chains had written off as too small.
CONFIRMED87% CONFIDENCEWikipedia's[3] Tokaido Shinkansen and Shinkansen articles, along with Japan House London's[2] retrospective, state the line opened on October 1, 1964, ahead of the Tokyo Olympics.
On October 1, 1964, just nine days before the Tokyo Olympics opened, Japan's Tokaido Shinkansen began carrying passengers between Tokyo and Osaka at over 200 km/h.
CONFIRMED87% CONFIDENCEHappened as dated, per sabr.org[3]: "April 9, 1965: Astros beat Yankees in first game inside the Houston Astrodome."
The Houston Astrodome, the world's first fixed-roof, air-conditioned multipurpose stadium, opened on 9 April 1965 with an exhibition game between the Astros and Yankees — though it's stood closed and searching for a new use since 2008.
Fairchild Semiconductor Corporation site, East Charleston Road, Palo Alto, Santa Clara County, California, 94043, United StatesFairchild Semiconductor
CONFIRMED88% CONFIDENCEThe IEEE reprint carries the original citation on its own first page: "Reprinted from Gordon E. Moore, 'Cramming More Components onto Integrated Circuits,' Electronics, pp. 114-117, April 19, 1965."[1]
Gordon Moore's four-page article in Electronics observes that the number of components per chip has been doubling yearly and projects it forward a decade. The observation becomes Moore's law and the semiconductor industry's roadmap.
Mercedes-Benz Werk Wörth, Wörth am Rhein, GermanyMercedes-Benz
CONFIRMED88% CONFIDENCEDaimler Truck's[3] own 60th-anniversary press release, "Historic milestone at the Mercedes-Benz plant in Wörth: First truck produced 60 years ago," names 14 July 1965 and the LP 608 model.
Mercedes-Benz's Wörth am Rhein plant, which had assembled only truck cabs since opening in 1963, produced its first complete vehicle, a green LP 608, on 14 July 1965. The plant has since grown into the world's largest truck factory, building models including the Actros.
BT Tower, Cleveland Street, Fitzrovia, London, UKBT Group
CONFIRMED83% CONFIDENCEHappened as dated, per the source[1]: "a single telephone call changed the history of London and the United Kingdom forever."
London's cylindrical BT Tower (originally the GPO Tower) began carrying live microwave telecommunications traffic in 1965, its concrete core partly designed to survive a nuclear blast.
Am Opel-Prüffeld 2, 63110 Rodgau-Dudenhofen, GermanyOpel
CONFIRMED85% CONFIDENCEMultiple independent 50th-anniversary retrospectives (Torque[2], epilog.de, autohaus.de[3]) agree the Dudenhofen proving ground opened in April 1966, though none give an exact day.
Opel opened its Dudenhofen proving ground near Frankfurt in April 1966, the most modern car test center in Europe at the time. Six decades on, its more than 70 kilometers of track still put prototype technologies like automated driving through secretive testing before they reach the road.
CONFIRMED84% CONFIDENCEBMW Group's[3] own Plant Berlin history page and its BMW Classic blog both state the first Berlin-built motorcycle, an R 60/2, rolled off the line on September 6, 1966.
BMW's newly built assembly line at its Berlin-Spandau plant produces its first complete motorcycle, an R 60/2 with a swinging-fork chassis, kicking off the relocation of BMW motorcycle manufacturing from Munich to Berlin.
CONFIRMED82% CONFIDENCEHappened as dated, per taskandpurpose.com[3]: "Camp Century continued to operate as perhaps the Army's most remote outpost until 1966 when it was closed down."
The US Army shut down Camp Century, its secret nuclear-powered base carved into the Greenland ice sheet to conceal a mobile missile network under Project Iceworm, after the tunnels it depended on began collapsing.
CONFIRMED84% CONFIDENCEHappened as dated, per the source[1]: "Habitat '67 is an apartment house complex in Montréal that was designed by architect Moshe Safdie and completed in 1967."
Moshe Safdie's modular housing experiment, conceived as his student thesis, opened to the public as a pavilion of Montreal's 1967 World's Fair.
The Thomas Crown Affair is a 1968 American heist film directed by Norman Jewison and written by Alan R. Starring Steve McQueen, Faye Dunaway, Paul Burke, and Jack Weston, the film follows Vicki Anderson (Dunaway), who is hired to investigate the culprits of a multi-million dollar bank heist orchestrated by Thomas Crown (McQueen).
CONFIRMED81% CONFIDENCEHappened as dated, per en.wikipedia.org[1]: "The 747’s first flight took place on February 9, 1969, and the 747 was certified in December 1969."
The first Jumbo Jet flew from Paine Field with test pilots Jack Waddell and Brien Wygle at the controls. Despite a minor flap problem the flight confirmed the 747 handled well and was largely immune to the Dutch roll that had plagued early swept-wing jets.
CONFIRMED83% CONFIDENCEHappened as dated, per en.wikipedia.org[1]: "Construction of six prototypes began in February 1965, with the first flight from Toulouse on 2 March 1969."
The Anglo-French supersonic airliner, built by Sud Aviation and the British Aircraft Corporation under a 1962 treaty, flew for the first time from Toulouse. Four Rolls-Royce/Snecma Olympus 593 turbojets drove an ogival delta wing carrying 92 to 128 passengers.
CONFIRMED93% CONFIDENCEThe source[1] gives "31 May off the coast of Peru in the Pacific Ocean at 15:23:29 local time", which is 20:23:29 UTC; the USGS[2] catalogue records 20:23:30 UTC for event iscgem796163.
A magnitude 7.9 earthquake off the Peruvian coast shook loose part of Mount Huascaran, and the debris avalanche buried the town of Yungay. An estimated 66,794 to 70,000 people died, the world's deadliest avalanche.
IBM Almaden Research Center, 650, Harry Road, IBM Almaden Research Center, San Jose, Santa Clara County, California, 95120, United StatesIBM
ESTIMATED75% CONFIDENCEThe paper's own header gives the issue and no day: Communications of the ACM, "Volume 13 / Number 6 / June, 1970". A month with no day is estimated at that month's last day.[1]
Ted Codd's paper in Communications of the ACM proposes storing data as relations queried by predicate logic, independent of how it is laid out on disk. It is the founding document of the relational database and of SQL.
CONFIRMED90% CONFIDENCEThe source[1] dates the strike in its opening line — it "struck East Pakistan (present-day Bangladesh) and India's West Bengal on 12 November 1970" — though its own track narrative says the cyclone peaked on 10 November and made landfall "on the following afternoon". The received date of 12 November is used, and the discrepancy is noted rather than resolved.
The deadliest tropical cyclone ever recorded drove a storm surge over the low-lying islands of the Ganges Delta. At least 300,000 died, and the Pakistani government's response helped set off the Bangladesh Liberation War.
Magic Kingdom, 1180 Seven Seas Drive, Bay Lake, Orange County, Florida, 32830, United StatesDisney
CONFIRMED90% CONFIDENCEHappened as dated, per the source[1]: "The Magic Kingdom, Polynesian Village Resort, and Contemporary Resort Hotel opened on October 1, 1971."
The Magic Kingdom and its Florida resort opened to the public near Orlando, realizing Walt Disney's vision for a second, larger theme park.
1517 Shattuck Avenue, Gourmet Ghetto, Berkeley, CA 94709, United StatesChez Panisse
ESTIMATED75% CONFIDENCEWikipedia[1] gives the year only - Waters "opened Chez Panisse in 1971 with the film producer Paul Aratow" - so the pin sits on that year's last day.
Alice Waters opened Chez Panisse in 1971 with the film producer Paul Aratow, in a house on Shattuck Avenue, and in doing so more or less founded what came to be called California cuisine: a short menu set by what the farms around the bay had that week rather than by a fixed carte. The block it stands on is now known as the Gourmet Ghetto.
CONFIRMED82% CONFIDENCEThe Office of the Historian states that "Nixon travelled to Communist China February 21–28, 1972, becoming the first U.S. President to visit mainland China while in office", and the Shanghai Communiqué itself records the visit as running "from February 21 to February 28, 1972".[1]
Richard Nixon spent 21 to 28 February 1972 in Beijing, Hangzhou and Shanghai, meeting Mao Zedong on the day he arrived. No sitting US president had set foot in the People's Republic, and the two governments had had no diplomatic relations for 23 years.
CONFIRMED87% CONFIDENCEForeign Relations of the United States prints the joint statement under the dateline "Shanghai, February 27, 1972". It is often dated 28 February, the day it reached readers in the United States and the visit's last day; this pin follows the document's own dateline.[1]
At the end of Nixon's visit the two governments published a joint statement setting out, separately, what each believed about Taiwan. Washington said it 'acknowledges that all Chinese on either side of the Taiwan Strait maintain that there is but one China' — the sentence US policy has rested on ever since.
CONFIRMED82% CONFIDENCEA contemporary Canberra Times report (as quoted by Tumut local history archives) states Tumut 3 Power Station opened on 23 October 1972; Wikipedia[2] corroborates the station entering service in the early 1970s.
Tumut 3 became Australia's first major pumped-storage hydroelectric plant, eventually reaching 1,800 MW of generating capacity as part of the Snowy Mountains Scheme. Three of its six units, fed by Talbingo Dam, can also pump water back uphill overnight at a combined 600 MW using cheap off-peak power.
CONFIRMED90% CONFIDENCEHappened as dated, per en.wikipedia.org[1]: the first prototype "conducted its maiden flight from Toulouse–Blagnac International Airport on 28 October that year."
Airbus’ first aircraft and the world’s first twin-engine wide-body airliner flew from Toulouse–Blagnac a month ahead of schedule, for one hour and 25 minutes, with Max Fischl as captain and Bernard Ziegler as first officer.
CONFIRMED81% CONFIDENCEHappened as dated, per the source[1]: "the first tenant to open for business in the Transamerica Pyramid was Crocker Bank, which held a ribbon cutting ceremony with Transamerica officials and an Open Day for visitors on November 27, 1972."
San Francisco's Transamerica Pyramid welcomed its first tenant after overcoming years of public opposition to its unconventional tapered design.
The University of Chicago, 5801, South Ellis Avenue, Hyde Park, Chicago, Hyde Park Township, Cook County, Illinois, 60637, United StatesUniversity of Chicago
ESTIMATED72% CONFIDENCEThe paper's own front matter gives a two-month issue and no day: "The Journal of Political Economy, Vol. 81, No. 3 (May - Jun., 1973), pp. 637-654". With only an issue window, the pin takes its last day rather than its first.[1]
Fischer Black and Myron Scholes give a closed-form price for a European option in the Journal of Political Economy, in the same year the Chicago Board Options Exchange opens. The formula becomes the language of the derivatives market.
Sydney Opera House, Bennelong Point, Sydney NSW, Australia
CONFIRMED83% CONFIDENCEHappened as dated, per the source[1]: "the Sydney Opera House was officially opened by Queen Elizabeth II."
Queen Elizabeth II officially opened the Sydney Opera House, capping fourteen years of construction that ran a decade late and far over its original budget.
The Exorcist is a 1973 American supernatural horror film directed by William Friedkin and produced by William Peter Blatty, who adapted his own 1971 novel. The film stars Ellen Burstyn, Max von Sydow, Jason Miller, and Linda Blair, and follows the demonic possession of a young girl and the attempt to rescue her through an exorcism by two Catholic priests.
CONFIRMED91% CONFIDENCEHappened as dated, per the source[1]: "The facility was established in 1974, following a series of destructive typhoons."
Japan's National Research Institute for Earth Science and Disaster Resilience completed its hangar-sized Large-Scale Rainfall Simulator in Tsukuba, letting scientists recreate extreme storms on demand to study landslides and flooding.
CONFIRMED75% CONFIDENCEWikipedia[1] states the day: "The Flower Drum was established by Gilbert Lau and opened on 26 May 1975", and its infobox carries the same date.
Gilbert Lau opened Flower Drum on 26 May 1975 in Melbourne's Chinatown and spent the following decades making the case that Cantonese cooking belonged at the top of Australian fine dining rather than in a separate category of it. It has been a fixture of the city's restaurant lists ever since, on Market Lane.
CONFIRMED82% CONFIDENCEEuropa-Park's own history and IAAPA's[2] 50th-anniversary retrospective both give July 12, 1975 as the park's opening date.
The Mack family opened Europa-Park, a 16-hectare amusement park built around European-themed lands, in the German town of Rust. It has since grown into continental Europe's second-most-visited theme park.
MRC Laboratory of Molecular Biology (LMB), Francis Crick Avenue, Trumpington, Cambridge, Cambridgeshire, Cambridgeshire and Peterborough, England, CB2 0QH, United KingdomMRC Laboratory of Molecular Biology
CONFIRMED88% CONFIDENCENature's[1] own page for the article gives citation_online_date 1975/08/01 and shows "01 August 1975" as the publication date, with the paper received 14 May 1975 and accepted 26 June 1975; it is Nature volume 256, issue 5517, pages 495-497.
Georges Köhler and César Milstein report in Nature that fusing an antibody-producing cell with a myeloma cell yields a line that secretes a single antibody indefinitely. Monoclonal antibodies become the basis of the modern biologics industry.
CONFIRMED92% CONFIDENCEThe American Presidency Project dates Ford's signing statement to 22 December 1975, and the Act itself is P.L. 94-163, enacted that day.[1]
Two years after the Arab oil embargo, the Energy Policy and Conservation Act set up a federal emergency oil stockpile and gave the President the power to order it sold when supply is severely interrupted. Ford called the bill imperfect but signed it anyway, to end "the long debate over national energy policy".
CONFIRMED93% CONFIDENCEThe source[1] is explicit about both clocks: the quake hit "at 03:42:55 on 28 July (19:42:55, 27 July UTC) 1976". The pin is stored in UTC, so it falls on 27 July even though the earthquake is known by its local date of 28 July.
A magnitude 7.5 earthquake struck directly beneath Tangshan at 3:42 a.m. local time, and within minutes 85% of the city's buildings were down. The official toll was 242,469 dead; historians accept at least 300,000.
Stanford University, 450, Jane Stanford Way, Stanford, Santa Clara County, California, 94305, United StatesStanford University
ESTIMATED75% CONFIDENCEThe paper's own running head gives the issue and no day: "IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. IT-22, NO. 6, NOVEMBER 1976". A month with no day is estimated at that month's last day.[1]
Whitfield Diffie and Martin Hellman propose public-key cryptography and a way for two parties to agree a secret key over an open channel. It is the idea that later makes e-commerce and secure messaging possible.
Exorcist II: The Heretic is a 1977 American supernatural science fiction horror film directed by John Boorman and written by William Goodhart. It is the second installment in The Exorcist film series and the sequel to The Exorcist (1973), and stars Linda Blair, Richard Burton, Louise Fletcher, Max von Sydow, Kitty Winn, Paul Henreid, and James Earl Jones.
CONFIRMED78% CONFIDENCEBerlin newspaper reporting on Marzahn's 40th anniversary states the construction brigade Peter Zeises of VEB Wohnungsbaukombinat Berlin set the first panel of a QP 71/WBS 70 building at Marchwitzastraße on 8 July 1977.[1]
A VEB Wohnungsbaukombinat Berlin construction brigade set the first concrete panel of a WBS 70 apartment block at Marchwitzastraße on 8 July 1977, starting what became Europe's largest prefabricated housing estate with 103,000 flats built in 15 years.
CONFIRMED90% CONFIDENCEDOE's own 40th-anniversary piece gives the day: "On July 21, 1977, the SPR received its first oil delivery."[1]
The Strategic Petroleum Reserve took its first delivery on 21 July 1977: about 412,000 barrels of Saudi Arabian light crude, pumped into salt caverns near Lake Charles, Louisiana. Construction had started that April, when the government bought up existing caverns along the Gulf Coast rather than wait to dig its own.
2184 Creek Street, Yountville, Napa County, California 94599, United StatesThe French Laundry
ESTIMATED73% CONFIDENCE3/3The source[1] gives the year but no day - "Sally Schmitt opened The French Laundry in 1978 and designed her menus around local, seasonal ingredients" - so the pin sits on that year's last day, as a year-only date does.
Sally Schmitt opened the restaurant in a stone building in Napa Valley in 1978 and built her menus around local, seasonal produce. Thomas Keller bought it in 1994 and it now holds three Michelin stars.
Embassy of the United States, Liangmaqiao Road, Chaoyang, Beijing, ChinaUS Department of State
CONFIRMED82% CONFIDENCEThe Office of the Historian states that "the Joint Communiqué stated that the United States would begin official diplomatic relations with the People's Republic of China on January 1, 1979, and that the two countries would open Embassies on March 1". The agreement itself was announced on 15 December 1978.[1]
From 1 January 1979 Washington recognised the People's Republic as the sole legal government of China and withdrew recognition from Taipei, ending thirty years in which the United States had treated the Republic of China on Taiwan as the government of all China.
South Lawn, The White House, Washington, DC, United StatesThe White House
CONFIRMED83% CONFIDENCEThe American Presidency Project's note on the remarks states that "the President spoke at 10:12 a.m. on the South Lawn of the White House" on 29 January 1979; 10:12 a.m. EST is 15:12Z.[1]
Four weeks after relations began, Deng Xiaoping stood on the South Lawn for a full arrival ceremony — the first visit to Washington by a leader of Communist China. He went on to charm Congress and the press, and to be photographed in a ten-gallon hat at a Texas rodeo.
The White House, 1600 Pennsylvania Avenue NW, Washington, DC, United StatesUnited States Congress
CONFIRMED83% CONFIDENCEThe Office of the Historian states that the Taiwan Relations Act "became law on April 10, 1979". No end date: the Act carries no sunset and is still in force.[1]
Three months after breaking relations with Taipei, Congress wrote the substitute into law: an unofficial relationship run through the American Institute in Taiwan, arms 'of a defensive character', and a declared US capacity to resist any resort to force against Taiwan. It has governed the question ever since.
CONFIRMED90% CONFIDENCEThe Thirty-third World Health Assembly declared the global eradication of smallpox on 8 May 1980, the date of the resolution.[1]
The World Health Assembly certified that smallpox had been wiped from the earth - the only human disease ever eradicated. The last natural case had been in Somalia in 1977, and the campaign that found it had traced and vaccinated outwards from every case for a decade.
CONFIRMED88% CONFIDENCEThe moment is recorded to the second: "An earthquake at 8:32:11 am PDT (UTC-7) on May 18, 1980, caused the entire weakened north face to slide away", which is 15:32:11 UTC.[1]
An earthquake at 8:32 a.m. local time dropped the volcano's weakened north face away in the largest subaerial landslide on record, uncorking a lateral blast toward Spirit Lake. Fifty-seven people were killed.
CONFIRMED92% CONFIDENCE88%47 episodesBroadcast start date confirmed on the title's own MyAnimeList[1] listing.
Tokyo Movie Shinsha's Tomorrow's Joe 2 continues the boxing manga adaptation, following a downhearted Joe Yabuki as he wanders away from the gym before an old rival helps pull him back into the ring.
CONFIRMED85% CONFIDENCEWikipedia's[3] MV Paul R. Tregurtha article gives 10 May 1981 as the ship's maiden voyage, following its 4 February 1981 launch as the William J. DeLancey.
Launched as the William J. DeLancey and later renamed Paul R. Tregurtha, the Great Lakes' longest ship began hauling cargo with its maiden voyage on 10 May 1981.