About the beginning of November 1654, John Casor approached Captain Samuel Goldsmith at Anthony Johnson's house in Northampton County and said he had come to Virginia under an indenture for seven or eight years, that he had demanded his freedom, and that Johnson had kept him seven years beyond the term.
That is the encounter the surviving record preserves. The 1653 attached to this entry belongs to a different stage — an earlier freedom claim that John Henderson Russell dated to that year.
Goldsmith asked Johnson to produce the indenture. Johnson said he had never seen one and claimed to hold Casor for life. Goldsmith's deposition adds that Robert and George Parker said they knew an indenture existed across the bay.
Reading the date back from March 1655
The encounter survives only inside a later document: the Northampton County order of 8 March 1655, which places it "about the beginning of November last." Read against that court date, the November in question is most naturally November 1654.
Some secondary accounts attach 1653 to Casor's earlier freedom claim and 1654 to the Johnson–Parker litigation; the listed entry appears to fold the two together.
Old Style dating and the gaps in the surviving records make the sequence into 1654/55 difficult to reconstruct precisely.
The appeal and its aftermath
Goldsmith reported that Johnson feared Casor might recover cattle as compensation for the years of excess service. Johnson's wife, sons and son-in-law then pressed him to let Casor go.
Casor entered the service of Robert Parker, a neighboring English planter who treated him as free to enter a new arrangement. Johnson later complained in the Northampton County court that Parker was detaining his servant under the pretense that Casor was free.
Nothing in the surviving evidence proves that Casor entered Parker's service on the same day he appealed to Goldsmith.
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Date disputed. Sources disagree; the research places it at ~1654-11.
What the sources leave uncertain
The encounter is reconstructed from a later deposition rather than a document created that day.
John Henderson Russell dated Casor's initial claim to 1653, and the listed month derives from the record's description of an encounter near the beginning of November. The surviving records and Old Style dating make the sequence into 1654/55 difficult to reconstruct precisely.
The evidence establishes Casor's claim and Johnson's response more securely than the exact date on which Casor left Johnson or began working for Parker.
Isaac Newton sent Henry Oldenburg a letter dated 6 February 1671/72 Old Style — 16 February 1672 by the Gregorian calendar — to be communicated to the Royal Society. England was then ten days behind Gregorian reckoning, and its legal year began on 25 March, which is why contemporaries could file the day under February 1671.
The Society had recently examined Newton's reflecting telescope and elected him a fellow. Oldenburg encouraged further communication, and Newton fulfilled his promise to describe the optical discovery behind the telescope.
Thirteen propositions
The letter described admitting sunlight through a small hole in a darkened room, refracting it with a triangular glass prism, and his surprise that the coloured image was oblong rather than circular. What began as a pleasing divertisement became a problem.
Across thirteen numbered propositions he argued that ordinary light is a heterogeneous mixture of rays with different refrangibilities, and that colour is an intrinsic property of those rays rather than something the refracting medium creates.
Red, yellow, green, blue, violet — and indefinitely more
Newton named red, yellow, green, blue and violet-purple as original or primary colours, together with orange, indigo and indefinitely many intermediate gradations. This is not a scheme of seven sharply bounded bands; the later seven-part arrangement was formalized in Opticks.
Oldenburg thanked him on 8 February Old Style and placed an edited version in Philosophical Transactions no. 80, pages 3075–3087, dated 19 February 1671/72. Hooke's objections followed within a week of the paper's circulation.
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Traditional date. Conventionally dated here; the research places it at 1672-02-16.
What the sources leave uncertain
The Gregorian date 1672-02-16 is a conversion of 6 February in England’s Julian calendar. England was then ten days behind the Gregorian calendar.
The contemporary date 1671/72 reflects England’s legal year beginning on 25 March: contemporaries could call the day February 1671, while modern historical dating calls it February 1672.
This is the dispatch date, not the publication date. Philosophical Transactions dated the issue 19 February 1671/72 Old Style.
In Paris, Gottfried Wilhelm Leibniz dated a manuscript — Analyseos tetragonisticae pars secunda, "Second Part of Analytical Quadrature" — 29 October 1675. It was not published at the time; the memorandum remained private.
On it he proposed replacing his existing abbreviation "omn." with ∫, writing in effect that ∫l meant the sum of all the l's. The new sign was an elongated S, taken from the Latin summa.
Not a character, an operator
Leibniz had been writing "omn." for omnia — "all" — in summation expressions, and his increasingly elaborate calculations made a shorter operational sign desirable.
He did not stop at the abbreviation. In the same memorandum he explored the inverse relationship between summation and taking differences, and worked through an identity recognizable as an early form of integration by parts.
From working page to print
In his manuscript of 11 November, Leibniz advanced the notation by placing dx after an integral sign, producing an ancestor of the modern ∫…dx form.
None of it was announced. The page sits in the critical edition at Sämtliche Schriften und Briefe, series VII, volume 5, pages 288–295, and the integral sign did not reach print until June 1686.
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The first integral sign was a stretched letter S for summa, and Leibniz wrote it into a private notebook simply as a shorter way of saying "all of them".
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29 October 1675: Analyseos tetragonisticae pars secunda
On 29 October 1675 Gottfried Wilhelm Leibniz used the integral sign ∫ for the first known time, in an unpublished manuscript titled Analyseos tetragonisticae pars secunda. He proposed that ∫ stand in place of omn. — omnia, "all" — and wrote ∫l = omn. l, the sum of all the l's.
The page belongs to a sequence of October–November 1675 quadrature notes in which Leibniz was trying to express systematically the inverse relationship between summing infinitesimal pieces and taking differences. This is the earliest of those notes to carry the notation that survived.
Two weeks later he took the next step. In a second private manuscript dated 11 November, Methodi tangentium inversae exempla — "Examples of the Inverse Method of Tangents" — he first placed dx after the integral sign, replacing his earlier x/d-style notation; MacTutor gives 21 November for the first manuscript use of the combined ∫f(x)dx. The November memorandum sits in the critical edition of Leibniz's Sämtliche Schriften und Briefe at series VII, volume 5, pages 321–331.
The notation ran ahead of the rules behind it
The November manuscript worked an inverse-tangent problem: rather than finding a tangent from a curve, Leibniz tried to recover a curve from a prescribed tangent property, one whose subnormal was inversely proportional to its ordinate. He treated summation as the inverse of taking differences.
The method was unfinished. A Mathematical Association of America reading notes that he was still testing incorrect possibilities for the differentials of products and quotients, and that dx apparently functioned as a constant equal to one in part of the argument.
He reached a correct product rule later in the same notebook sequence, on 27 November 1675.
What 'earliest' rests on
The word earliest depends on what qualifies as infinitesimal calculus. Newton had formulated essential ideas of his fluxional calculus before Leibniz's 1675 manuscripts, though publication and priority became contentious.
Popular accounts describe the event as the first use of integral calculus to find the area under y=f(x). Specialist histories call that a modernised description: the October manuscript concerned quadrature and summation notation, the November one inverse tangents, and Leibniz did not yet possess a clear modern concept of functions, limits or area as an integral.
The work stayed private and caused no immediate public change. His first paper on differential calculus appeared in 1684, and ∫ appeared in print in 1686.
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Date disputed. Sources disagree; the research places it at 1675-10-29.
What the sources leave uncertain
The supplied event gives only the year and the unclear phrase “breaking down of a function.” The identifiable manuscript event is dated 11 November 1675.
Popular accounts call this the first use of integral calculus to find the area under y=f(x). That is a modernized description: specialist histories emphasize that the manuscript concerned inverse tangents and that Leibniz did not yet possess a clear modern concept of functions, limits or area as an integral.
The priority word “earliest” depends on what qualifies as infinitesimal calculus. Newton had developed related methods earlier, while Leibniz’s importance here lies particularly in the surviving manuscript sequence and notation.
The official statute database still heads it "Bill of Rights [1688]" — even as it records royal assent on 16 December 1689, because England's legal year began on 25 March.
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On 16 December 1689 royal assent was given at Westminster to An Act Declaring the Rights and Liberties of the Subject and Settling the Succession of the Crown, now known as the Bill of Rights.
The assent gave statutory force to the Declaration of Rights that had been read to William and Mary on 13 February, when the Convention offered them the Crown. They had therefore already been monarchs for ten months; the Act confirmed their authority and the succession settlement rather than putting them on the throne that day.
Thirteen articles
The House of Commons Library summarizes thirteen articles defining limits on the Crown and confirming parliamentary and individual rights: parliamentary consent for taxation and for a peacetime standing army, free elections, freedom of speech in Parliament, the right to petition, and prohibitions on excessive bail, excessive fines and cruel and unusual punishments.
The Act also confirmed the succession settled on William and Mary and their designated Protestant heirs, while excluding persons professing Roman Catholicism from the Crown.
Read the small print
This was mainly a settlement of Crown–Parliament relations and of grievances against James II, not a modern universal declaration of equal individual rights. Its freedom-of-speech provision protects speech and proceedings in Parliament, not public expression generally.
Parliament expressly says the February Declaration was not imposed as a condition William and Mary had to accept before becoming king and queen. And though the Act said its provisions would remain law forever, portions have since been amended or repealed.
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Traditional date. This date is the conventional one, not one fixed by a contemporary record.
What the sources leave uncertain
The date 16 December 1689 is the contemporary English Old Style date and corresponds to 26 December in the Gregorian calendar.
Official revised-statute collections often classify the Act as the Bill of Rights 1688 because the parliamentary session began on 13 February 1688 under the old English convention in which the legal year began on 25 March. This does not mean royal assent occurred in modern-calendar 1688.
Commissioners nominated for England and Scotland signed an agreed draft of Articles of Union in London on 22 July 1706, closing negotiations that had run since 16 April.
Thirty-one commissioners had been nominated for each kingdom. They sat in separate rooms and negotiated by passing written papers between them.
What the twenty-five articles proposed
The draft provided for an incorporating union called Great Britain, with a shared Parliament, the Hanoverian Protestant succession, and reciprocal access to trade and colonial markets.
Agreement was not universal on the Scottish side. George Lockhart of Carnwath is the one Scottish commissioner the National Records educational resource identifies as opposing union.
Signed, and binding nothing
The commissioners had no authority to bind either kingdom. A House of Lords constitutional report stresses that they were expressly forbidden to conclude a treaty themselves, and signed only an agreed provisional draft.
The papers were presented to Queen Anne on 23 July, and she recommended them to the Scottish and English parliaments for approval.
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What the sources leave uncertain
The familiar name “Treaty of Union” can imply a binding treaty signed on 22 July. A House of Lords constitutional report stresses that the commissioners were expressly forbidden to conclude a treaty themselves and signed only an agreed provisional draft.
Contemporary Britain still used Julian day-and-month reckoning. The conventional historical date is retained rather than converted to a proleptic Gregorian date.
At Edinburgh on 4 November 1706, the Parliament of Scotland approved the first Article of Union, which set out the principle that Scotland and England would become one kingdom named Great Britain.
The division carried by 116 votes to 83, a majority of 33. The official record lists members by name as approvers and opponents, preserving the political roll call of the day.
Approval with a condition attached
The approval was explicitly conditional: if Parliament did not adjust the remaining articles, its approval of Article I would have no effect.
The same motion promised what Parliament would take up next — not trade or taxation, but legislation securing the doctrine, discipline, worship and government of the established Church of Scotland.
A kingdom scheduled, not created
Article I named 1 May as the future date on which the two kingdoms would be united. Nothing merged on 4 November.
Parliament proceeded to secure the Church of Scotland, then went on debating and amending the other articles for more than two months. The 116–83 tally belongs to Article I and is not the final ratification vote.
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What the sources leave uncertain
The 116–83 tally is the well-attested division on Article I, not the final vote on the complete Treaty and ratifying act.
Official educational sources differ over whether the final 16 January division should be summarized as 110–67 or 110–69, apparently because of counting conventions. That later discrepancy does not affect the 116–83 vote on this event.
16 January 1707: the act passes at Parliament House
At Parliament House in Edinburgh on 16 January 1707, the Scottish Parliament approved the act ratifying the amended Articles of Union with England.
The recorded division was 110 approvers to 67 opponents, with 46 members absent or abstaining. Some secondary accounts report 68 or 69 noes; the official recorded list and Scottish archival summaries give 67.
Assent by sceptre
After the vote, the Duke of Queensberry touched the act with the royal sceptre — the Scottish form by which Queen Anne's assent was signified.
Statutory protection for Scotland's Presbyterian church government was written into the ratification settlement the same day.
Still not one kingdom
The twenty-fifth and final article had been approved on 14 January, and a draft ratification act was introduced on 15 January. What passed on the 16th was the whole amended settlement, church-security provisions included.
It did not create Great Britain that day. Union was expressly deferred to 1 May 1707, the amended articles still had to be enacted at Westminster, and the Scottish Parliament kept sitting until 25 March.
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The historical date is conventionally given as 16 January 1707 in the Julian calendar then used in Scotland. It corresponds to 27 January in the Gregorian calendar.
Some secondary accounts report 68 or 69 opponents, but the official recorded list and Scottish archival summaries identify 110 approvers and 67 noes.
Article I of the Union settlement took effect on 1 May 1707: the previously separate Kingdoms of England and Scotland became one state named Great Britain. Queen Anne, until then queen separately of each, became the single monarch of the new state.
British records and almost all historical accounts use 1 May, the Julian date then in force. Its Gregorian equivalent was 12 May — the same physical day under a different calendar.
A Parliament that did not sit
The settlement provided that Great Britain would be represented by one Parliament of Great Britain, replacing the separate English and Scottish legislatures. It existed legally from 1 May, and did not assemble.
A proclamation of 5 June called it to meet at Westminster on 23 October. Scotland's share of it was 45 members of the Commons and 16 representative peers.
Celebrated in one capital
London marked the Union with Queen Anne's procession and a thanksgiving service at St Paul's Cathedral. No official celebration was imposed in Edinburgh.
Nor did the day erase institutional distinctions: Scottish private law, courts and the Presbyterian establishment were specifically preserved. The old Scottish Parliament had last met on 25 March and was formally dissolved before 1 May arrived.
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Date corrected. The research places this at 1707-05-01.
What the sources leave uncertain
British records and almost all historical accounts call the date 1 May 1707, using the Julian calendar then in force. Its Gregorian equivalent was 12 May because eleven days must be added after February 1700.
The ISO date here follows the date used in the act and in British historiography. A database systematically converting pre-1752 British dates to Gregorian could instead label the same physical day 1707-05-12.
Near Poltava in the Cossack Hetmanate on 8 July 1709, Charles XII ordered a pre-emptive attack on Peter I's fortified encampment after learning that Russian reinforcements were reportedly approaching. His foot wound had disabled him, so Field Marshal Carl Gustaf Rehnskiöld exercised Swedish tactical command.
The same day carries three correct dates: 27 June in the Julian calendar Russia used, 28 June in Sweden's own temporary calendar, and 8 July Gregorian.
The redoubts, then the rout
Swedish infantry advanced early in the morning, captured two Russian redoubts but failed to hold them, and became divided while trying to pass the defensive works. Carl Gustaf Roos's detached battalions were cut off and surrendered.
After the armies regrouped, Russian artillery and infantry broke the Swedish formation. By about 11 a.m. the Swedish field army had been routed, with Rehnskiöld and the royal minister Carl Piper among those captured.
Three days to the capitulation
The Encyclopedia of Ukraine account puts Peter's force at 42,500 soldiers and 102 cannon against a Swedish army of 31,000 that took only four guns forward with the attack. It counts more than 9,300 Swedish dead and nearly 2,900 captured, against 1,345 Russian dead and 3,290 wounded; the totals differ across Swedish, Russian and Ukrainian accounts.
Surviving Swedish units withdrew south along the Vorskla. Within three days Charles XII, Ivan Mazepa and a mixed Swedish-Cossack contingent had crossed the Dnipro, while about 16,000 men under Adam Ludwig Lewenhaupt capitulated at Perevolochna.
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Date corrected. The research places this at 1709-07-08.
What the sources leave uncertain
The same day was 28 June in Sweden’s temporary Swedish calendar, 27 June in the Julian calendar used by Russia, and 8 July in the Gregorian calendar. The ISO date uses the modern Gregorian equivalent.
Strength and casualty totals differ among Swedish, Russian and Ukrainian accounts. The figures above preserve the numbers and attribution of the cited Encyclopedia of Ukraine rather than presenting them as uncontested.
1 August 1714: an accession at 7:45 in the morning
Queen Anne died at Kensington Palace at about 7:45 a.m. on 1 August 1714 — the British Old Style date, 12 August in the Gregorian calendar — without surviving children. Under the statutory Protestant succession, the crowns passed immediately to Georg Ludwig, Elector of Hanover, as George I.
Sophia of Hanover, the heir the Act of Settlement had named, had died two months before Anne. George inherited as her Protestant heir, ahead of roughly 50 Roman Catholic relatives with stronger hereditary claims.
Proclaimed in his absence
The Privy Council met, adapted the established accession proclamation, and declared the Elector lawful king of Great Britain, France and Ireland. It was issued in London that day, over more than 120 signatures.
George was still in Hanover. The regency arrangements were opened, and Lords Justices began administering the government in his name.
Forty-eight days to Greenwich
He took no oath and underwent no ceremony on the day he became king; the accession was automatic. George arrived at Greenwich on 18 September 1714 and was crowned on 20 October.
The accession on 1 August had already created a personal union of crowns, not a merger: Great Britain and Hanover remained separate states. And while the Stuart reign had ended, the Stuart claim had not: James Francis Edward Stuart and his Jacobite supporters went on challenging the Hanoverian succession.
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The date 1 August is the British Old Style/Julian date used by contemporary British records. Its Gregorian equivalent was 12 August 1714.
There is no uncertainty about the legal accession date: under the contemporary rule, the successor became monarch immediately upon the predecessor’s death; proclamation and coronation recognized rather than created the accession.
Carl Linnaeus brought the manuscript to the Netherlands. The botanist Jan Frederik Gronovius and the Scottish physician Isaac Lawson both urged him to publish it; Gronovius helped finance the printing, and Lawson otherwise supported the production.
Johannes Wilhelm de Groot printed the book at Leiden for the bookseller Theodorus Haak. Linnaeus's almanac records that printing began on 30 June, the manuscript was finished on 15 July, and printing was ready on 13 December 1735.
Eleven folio pages
The work presented Linnaeus's classifications of the mineral, vegetable and animal kingdoms in large tabular spreads organized through classes, orders, genera and species. The substantive text ran to eleven large folio pages, though counts vary between 11, 12 unnumbered and 13 facsimile pages depending on which leaves are included.
It was schematic, not descriptive, and it did not consistently apply binomial species names. The animal table placed Homo within the order Anthropomorpha — not the later Primates — alongside other manlike genera, and divided humanity into four geographical varieties distinguished principally by colour terms.
A date the title page does not give
The title page carries only the year. Bibliographical evidence places printing and publication between 9 and 13 December, and no single first-sale or release day is securely established. The manuscript's closing note is dated 23 July 1735, which is not the publication date.
Once printing was finished Haak sold copies in Leiden at 2½ guilders while Gronovius retained stock for distribution. Linnaeus was 28.
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Date disputed. Sources disagree; the research places it at 1735-12.
What the sources leave uncertain
The title page gives only 1735. Bibliographical evidence places printing and publication between 9 and 13 December, while Linnaeus’s almanac says printing was ready on 13 December. A single first-sale or release day is not securely established.
The manuscript’s closing note is dated 23 July 1735; that is not the publication date.
Descriptions vary between 11 pages, 12 unnumbered pages and 13 facsimile pages depending on whether title, blank or supplementary leaves are counted.