Apple began selling the original iPhone in the United States at 6:00 p.m. local time on 29 June 2007, through its retail stores and selected AT&T stores; its online store began accepting orders at 6:00 p.m. Pacific time.
All 164 U.S. Apple retail stores stayed open until midnight, selling no more than two iPhones per customer on a first-come, first-served basis.
$499 for four gigabytes
The launch offered a 4GB model for $499 and an 8GB model for $599.
What buyers could now own combined a GSM/EDGE phone, widescreen iPod functions and Internet applications behind a finger-controlled multi-touch interface.
Not yet the iPhone people remember
The launch device used EDGE rather than 3G and shipped without the App Store; both arrived with the 2008 software and the iPhone 3G generation. “First modern smartphone” is a retrospective and subjective label rather than a verifiable product category — smartphones existed before it.
By that evening, consumers rather than journalists and developers could own and activate the iPhone. Apple had formally entered the U.S. mobile-phone retail market, and its stores began providing iPhone workshops and technical support the following morning.
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According to the canonical account attributed to Aisha, Muhammad was on a solitary devotional retreat in the cave of Hira near Mecca when an angel commanded him to read or recite — the word iqra carries both senses. The account says the angel pressed him three times before delivering the opening words now found at the beginning of Quran 96.
Approximately 610 is the conventional year, not a securely documented calendar date, and the traditional age of 40 is counted in lunar years.
Khadija's answer
Muhammad returned home frightened and asked Khadija to cover him. She reassured him by pointing to his care for relatives, guests, the poor and people in distress.
She then took him to her Christian cousin Waraqa ibn Nawfal, who identified the visitor with the messenger sent to Moses and predicted that Muhammad's people would drive him out.
What this account is, and is not
The Quran itself does not date the cave encounter or narrate the full Hira scene; the detailed story comes through later sira and hadith transmission, and traditions differ over whether Quran 96 or Quran 74 was the earliest revelation.
The same tradition says revelation then paused for a time. Gathering followers and preaching publicly belong to later stages — conventionally about three years afterwards — so the first revelation should not be merged with the start of public preaching.
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Date disputed. Sources disagree; the research places it at ~0610.
What the sources leave uncertain
The Quran itself does not date the cave encounter or narrate the full Hira scene; the detailed story comes through later sira and hadith transmission.
Around 610 is the conventional year, not a securely documented calendar date.
Traditions differ over whether Quran 96 or Quran 74 was the earliest revelation.
The reported age of 40 is part of the traditional chronology. Because Muhammad's birth date is approximate, it cannot be converted into a precise solar age.
The Byzantine emperor who wrote an account of the epidemic also lost his own son to it — and the famous fleeing-refugee story is giving way to records about the grain trade.
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During 1347 plague crossed the Black Sea through renewed maritime commerce and produced an epidemic in Constantinople. Emperor John VI Kantakouzenos wrote an account of the outbreak; his son Andronikos died during it.
The listing's phrase about a '1331 Black Death plague in Theodosia' has no support — the relevant Black Sea epidemic and conflict belong to 1346–1347.
Embargoes, then grain ships
Older reconstructions place the city's infection in early May 1347 and attribute it to galleys from Kaffa. Hannah Barker's 2021 study of administrative and commercial records instead dates the crossing to autumn 1347 and emphasizes renewed grain shipments after wartime trade embargoes were lifted.
On that reading, a 1346 embargo may have delayed plague's crossing of the Black Sea for more than a year — and the nationality and itinerary of the ships that first infected the capital cannot be established securely.
One node, not a straight line
The infected capital became one node in a wider chain of maritime outbreaks around the eastern Mediterranean; the surviving evidence does not support a single simple route from Kaffa to every later port. Plague moved along overlapping Genoese, Venetian, Byzantine and Mamluk networks.
The Kaffa corpse-catapult narrative deserves the same caution: it comes from a writer who was in Piacenza, hundreds of kilometres away, and is not settled eyewitness fact.
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Date disputed. Sources disagree; the research places it at ~1347.
What the sources leave uncertain
Older reconstructions place the city's infection in early May 1347 and attribute it to galleys from Kaffa.
Hannah Barker's 2021 study of contemporary administrative and commercial records instead dates the crossing to autumn 1347 and emphasizes renewed grain shipments after trade embargoes were lifted.
The nationality and precise itinerary of the ship or ships that first infected Constantinople cannot be established securely.
The event's listed phrase "1331 Black Death plague in Theodosia" has no support: the relevant Black Sea epidemic and conflict belong to 1346–1347.
On 20 January 2020, the respiratory specialist Zhong Nanshan, leading a high-level expert team for China's National Health Commission, publicly confirmed that the virus then called 2019-nCoV was passing from person to person.
His evidence was specific: two patients in Guangdong who had never traveled to Wuhan, sickened after family members returned from the city — and infections among medical workers, which market exposure could not explain. By 6 p.m. that day, Wuhan had reported 198 cases.
The state moves the same day
The confirmation landed four days before the Spring Festival holiday, when officials expected mass travel to accelerate spread. That same 20 January, Xi Jinping ordered resolute containment efforts and Premier Li Keqiang chaired a State Council meeting coordinating the response.
China classified the disease as Class B but ordered it managed with the stricter controls reserved for Class A diseases.
Confirmation, not discovery
The 20th marked authoritative public confirmation, not the start of transmission — later evidence showed person-to-person spread among close contacts by mid-December 2019. Nor was it the first hint: WHO had publicly discussed possible limited transmission on 14 January and evidence of it on 19 January.
The global machinery turned more slowly. WHO's emergency committee met on 22–23 January and split; the international emergency declaration came on 30 January. But 20 January was the day the ambiguity ended in public, from the government at the outbreak's center.
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In December 1439, the brothers of Gutenberg's deceased associate Andreas Dritzehn sued him in Strasbourg, seeking repayment of Dritzehn's investment or admission to the secret partnership. The Strasbourg council's judgment of 12 December rejected their demand to enter the partnership, requiring Gutenberg to pay only the remaining 15 guilders due under the agreement.
Secrecy was the heart of the dispute — and after Dritzehn's death Gutenberg had the forms collected and dismantled or melted so that outsiders could not understand the apparatus.
What the witnesses described
Testimony mentioned a wooden press, lead, moulds or forms, and secret equipment. The goldsmith Hans Dünne stated that Gutenberg had paid him about 100 guilders for work connected with “printing.”
That vocabulary is suggestive but ambiguous: the same materials could relate to metalworking or to the manufacture of pilgrims' mirrors, which were worn on hats to capture the rays believed to emanate from displayed relics.
The earliest clue, not an invention date
This testimony is the earliest surviving documentary connection between Gutenberg and printing. It does not prove that he had completed a movable-metal-type system or printed a book by 1439, and the evidence is Strasbourg's, not Mainz's — Gutenberg is documented in Strasbourg from 1434 through 1444.
No surviving book can be securely assigned to his Strasbourg period; the Mainz historical portal notes that no book known to have been printed in Strasbourg before 1460 survives.
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Date disputed. Sources disagree about when this happened.
What the sources leave uncertain
The lawsuit’s vocabulary—press, lead, forms and something “belonging to printing”—is suggestive but ambiguous; the same materials could also relate to metalworking or mirror manufacture. Source: https://www.gutenberg-gesellschaft.de/en/johannes-gutenberg/gutenberg-in-strasbourg/seite
No surviving book can be securely assigned to Gutenberg’s Strasbourg period, and the Mainz historical portal notes that no book known to have been printed in Strasbourg before 1460 survives. Source: https://www.gutenberg.de/en/zeit/gutenberg_mainz
Albert Kapr interprets “art and adventure” as a cover name for early printing and places the breakthrough around 1440, but explicitly presents this as a historical argument rather than a dated contemporary record. Source: https://journals.uc.edu/index.php/vl/article/view/5523
Peace was signed in two places that morning: the American treaty at a hotel in Paris, and Britain's separate French and Spanish treaties at Versailles.
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On 3 September 1783, John Adams, Benjamin Franklin and John Jay for the United States, and David Hartley for Great Britain, signed and sealed the definitive Treaty of Paris at Hartley's lodgings in the Hôtel d'York. The signing was complete by about 10:30 a.m., and four official copies were executed.
Henry Laurens, who had signed the 1782 preliminary articles, was not among the four signatories that morning.
Ten articles
Britain acknowledged the United States as free, sovereign and independent states and relinquished claims to their government, property and territorial rights. The treaty confirmed boundaries, American fishing rights, access for creditors, prisoner release, British evacuation and free navigation of the Mississippi for British subjects and U.S. citizens.
Article 5 is often misread: it did not compel states to restore Loyalist property, but required Congress to *recommend* restitution — language that left implementation with the states.
Signed, but not yet finished
On the same date Britain signed separate definitive treaties with France and Spain at Versailles, completing the broader 1783 settlement among those powers.
The signatures did not complete the peace in law or on the ground: the treaty specified ratification within six months, and British evacuation of every post was not instantaneous.
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At a White House ceremony on 26 June 2000, President Bill Clinton announced that the public Human Genome Project consortium had assembled a working draft of the human genome sequence; British prime minister Tony Blair participated by satellite from London.
Francis Collins represented the international public consortium and Craig Venter represented Celera Genomics. The ceremony recognized two separate achievements rather than one merged product: Celera announced its own first assembly using whole-genome shotgun sequencing, while the public consortium used a hierarchical shotgun approach based on mapped large fragments.
97% covered, 24% finished
The public consortium reported overlapping DNA fragments covering 97% of the genome, with sequence assembled for approximately 85% at a reported average accuracy of 99.9%. About half was in near-finished form or better, and 24% was completely finished.
The consortium emphasized that this was an intermediate draft containing gaps and ambiguities, not a finished genome sequence.
A milestone, not a data release
Public-project sequence data had been released continuously and freely as it was generated, so the day marked a milestone rather than the first opening of that data to researchers.
Neither project was finished. The public consortium moved into gap-filling and accuracy improvement, while both teams prepared separate peer-reviewed analyses published in Nature and Science in February 2001.
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The celebrated “official unveiling” was apparently a short run down a Mannheim street in ordinary traffic — the consulted institutional sources describe no launch ceremony at all.
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On 3 July 1886, Carl Benz made a short public test drive of his three-wheeled Motorwagen No. 1 in Mannheim. The run took place on the city's Ringstraße, bringing a vehicle that had until then been tested privately into public traffic and past passers-by.
After the yard trials and the January patent application, what the machine still needed was exposure to ordinary road conditions.
A test drive, not a ceremony
Contemporary newspapers reported a first public outing during July 1886. The evidence supports a test drive more clearly than a staged unveiling; for a formal launch event the consulted institutional sources provide no evidence.
Nor was this the patent moment, though the two are often merged: Benz had filed on 29 January, and the patent was granted on 2 November.
What the street saw
One lever shifted the leather drive belt into idle; moved the other way, that same control operated the brake.
Figures of about 16 km/h describe the vehicle's reported maximum capability, not necessarily the speed attained on this short outing. It remained an experimental prototype: commercial manufacture and Bertha Benz's long-distance demonstration came later.
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What the sources leave uncertain
The exact date is supported by the German Patent and Trade Mark Office and Mannheim’s municipal chronology.
Sources document a short public test drive, but “officially unveils” suggests a formal launch ceremony for which the consulted institutional sources provide no evidence.
The conventional chronology places Muhammad's death in Medina on Monday, 8 June 632, following a brief final illness; Aisha's transmitted report explicitly identifies the weekday as Monday. The precise conversion from the early Islamic calendar remains disputed, and modern reconstructions have proposed alternatives including 25 May 632.
The sources describe fever and physical decline but do not establish a medically certain cause of death.
The account from inside the room
In Aisha's account, Muhammad died in her room while supported against her chest, shortly after using a softened tooth-cleaning stick and invoking the 'highest companions.' He was reportedly shrouded in three pieces of white cotton cloth.
These are later transmitted traditions, preserved especially in ninth-century hadith collections, rather than contemporary eyewitness documents.
Shock, then a verse
Some followers were so stunned that Umar initially insisted Muhammad had not died. Abu Bakr returned from al-Sunh, viewed and kissed the body, then steadied the gathering by reciting Quran 3:144 to affirm that Muhammad had died.
The community had lost both its prophetic and political leader, and a succession meeting at the Saqifa followed almost immediately. The traditional age of 63 rests on lunar-year chronology; because the birth year is itself approximate, civil-calendar ages of 61 or 62 also appear in modern references.
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Traditional date. This date is the conventional one, not one fixed by a contemporary record.
What the sources leave uncertain
8 June 632 is the conventional civil date, but early reports disagree over the corresponding Hijri day. Modern calendar reconstructions have proposed alternatives including 25 May 632.
The traditional age of 63 is based on lunar-year chronology. Because Muhammad's birth year is itself approximate, civil-calendar ages such as 61 or 62 also appear in modern references.
Accounts of the final moments cited here are later transmitted traditions, especially those preserved in ninth-century hadith collections, not contemporary eyewitness documents.
Sunni and Shia traditions interpret the legitimacy and meaning of Abu Bakr's succession differently.
Researchers tried to look backward through a pandemic using cars visible from space. The study never found the virus — its signal was fuller parking lots and more searches for 'diarrhea.'
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On 9 June 2020, news organizations worldwide reported on a preprint hosted in Harvard's DASH repository that used satellite counts of vehicles outside six Wuhan hospitals, plus Baidu search trends for symptom terms, to look for signs of unusual disease activity before December 2019.
The authors — led by Boston University's Elaine Nsoesie, with Harvard Medical School's John S. Brownstein — reported rising hospital traffic and 'diarrhea' searches beginning in late summer 2019, with hospital traffic peaking in December. The manuscript was posted on 8 June; broad news coverage and expert reaction followed on 9 June.
What the data actually was
The study analyzed 111 satellite images spanning January 2018 to April 2020. In one published comparison, a hospital lot held 171 cars in October 2018 and 285 about a year later — a 67% increase. Crucially, the authors themselves framed the signals as possible evidence of an unidentified respiratory outbreak, not detection of SARS-CoV-2, and acknowledged the data could not establish a cause.
The same day, independent experts pressed the weaknesses: not peer reviewed, purely correlational, no control analyses from comparable cities outside Hubei — and critics found crowded images from other dates that complicated the comparisons.
How a hedge became a headline
The coverage introduced two notable slippages. A manuscript stored in a Harvard repository became a 'Harvard University study,' though hosting is neither peer review nor institutional endorsement. And the authors' hedged conclusion about possible fall-2019 disease activity sharpened, in headlines, into a claim that COVID-19 was spreading in August.
The preprint drew immediate scientific criticism and rejection by Chinese officials, and it did not revise the accepted outbreak timeline — no August patient, clinical specimen, or viral genome was ever part of it.
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Date disputed. Sources disagree about when this happened.
What the sources leave uncertain
The manuscript was posted June 8; June 9 is the date on which the claim received broad news coverage and expert reaction.
The study was a non-peer-reviewed preprint and did not test any August patient, clinical specimen or viral genome.
Parking occupancy and symptom searches have many possible causes. The observed correlation cannot identify COVID-19 specifically.
Experts also questioned image selection, vehicle-count comparability and the lack of control cities. Consequently, the claim of August circulation remains unsupported by this study alone.
Twenty-three delegates sat in the room, but lone members from New Hampshire and New Jersey could not cast votes for their states — and the treaty needed nine.
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Meeting in the Senate Chamber of the Maryland State House in Annapolis, the Confederation Congress unanimously ratified the definitive Treaty of Paris on 14 January 1784, with nine state delegations qualified to vote.
Getting there had been the problem. Twenty-three delegates were present from eleven states, but New Hampshire and New Jersey each had only one member — not enough to cast a state vote. Delegates from Connecticut and South Carolina arrived on 13 and 14 January, supplying the nine-state representation the Articles of Confederation required.
A proclamation and a recommendation
Congress issued a proclamation announcing that it had approved, ratified and confirmed every part of the treaty, and directing American officials and citizens to carry its provisions into effect. Thirteen official copies were printed, one for each state.
It also unanimously recommended that state legislatures comply with Article 5 by reconsidering confiscation laws and providing for possible restitution of property belonging to British subjects and Loyalists — a recommendation, as the treaty's wording allowed, not a command.
Still four months from force
Congress ordered the ratification sent to the American peace commissioners in France for exchange and appointed Colonel Josiah Harmar to carry it, against a six-month deadline that ran from the treaty's signature to 3 March 1784.
The date is often described as the day the Revolutionary War ended, which compresses a multi-stage process: signature on 3 September 1783, congressional ratification on 14 January 1784, British ratification on 9 April, and entry into force with the exchange of ratifications in Paris on 12 May 1784.
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What the sources leave uncertain
The date of Congress's action is secure. Descriptions of January 14 as the single moment the Revolutionary War 'ended' simplify a multi-stage process: the treaty was signed on September 3, 1783, Congress ratified it on January 14, 1784, Britain ratified it on April 9, and the ratifications were exchanged—bringing the treaty into force—on May 12, 1784.
At a Geneva media briefing on 11 March 2020, WHO Director-General Tedros Adhanom Ghebreyesus announced the organization's assessment that COVID-19 could be characterized as a pandemic. The numbers he cited: more than 118,000 reported cases across 114 countries, 4,291 deaths, a 13-fold increase in cases outside China over the preceding two weeks, and a tripling of affected countries.
WHO said it was deeply concerned about the levels of spread, severity — and inaction. It also insisted countries could still change the pandemic's course.
What the word did and didn't change
The exact wording was that COVID-19 'can be characterized as a pandemic' — an assessment, not a new treaty-based declaration. The legally significant step, a Public Health Emergency of International Concern, had already been declared on 30 January.
WHO said so explicitly: the characterization changed neither its threat assessment, nor its own activities, nor what countries should do. It renewed the same calls — activate emergency mechanisms, test and isolate, trace contacts, prepare hospitals.
A pandemic with an uneven map
The label described worldwide spread, not uniform catastrophe. On the day of the announcement, more than 90 percent of the 118,000 reported cases were concentrated in just four countries — while 81 countries had reported no cases at all, and 57 had reported ten or fewer.
National lockdowns, school closures and travel rules were adopted on different national schedules — some before 11 March and others afterward — and none were automatic legal consequences of WHO's assessment.
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Date corrected. The research places this at 2020-03-11.
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