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December 18, 1894

Women's suffrage

South Australian women became the first in Australia to gain voting rights and the first globally to be eligible for Parliament.

A Landmark in Women's Rights

In 1894, South Australia became the first place in Australia to grant women the right to vote and to run for office. This change came after years of advocacy and marked a major shift in political rights for women.

The law was enacted in 1895, making South Australia a global leader in women's suffrage. It was a significant milestone in the broader movement for women's rights, which had been gaining momentum in the 19th century.

The Road to Equality

Prior to 1895, women in most parts of the world had little to no political power. In many places, only men could vote or hold office. The push for women's suffrage was part of a larger movement for equality, with activists working to change laws and public attitudes.

South Australia’s decision followed similar changes in other regions, such as New Zealand in 1893, and it inspired other countries to follow suit in the decades that followed.

A Global First

South Australia’s law was notable in that it not only gave women the right to vote but also allowed them to stand for election to Parliament. This made it among the earliest places in the world where women could both vote and seek office.

The change was championed by suffragists like Catherine Helen Spence, who ran for office in 1897.

Broader Implications

The South Australian reform was part of a global movement toward women's suffrage. In the early 20th century, more countries began to extend voting rights to women, influenced by the success of earlier pioneers like South Australia.

The movement continued to grow, with countries in Europe, North America, and beyond gradually adopting similar reforms. By the mid-20th century, women's suffrage had become a widely accepted norm in democratic societies.

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April 17, 1895

Treaty of Shimonoseki

Li Hongzhang signed with a recent bullet wound in his cheekbone, inflicted while he was returning from the third negotiating session.

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Eleven articles at Shimonoseki

At Shimonoseki on 17 April 1895, the Japanese plenipotentiaries Itō Hirobumi and Mutsu Munemitsu and the Qing plenipotentiaries Li Hongzhang and Li Jingfang signed an eleven-article peace treaty.

It was the seventh negotiating session. Li Hongzhang had returned to the table after being shot in the face by Koyama Toyotarō on 24 March, an attack that prompted Japan to soften its armistice position and agree to an unconditional armistice on 30 March.

What China conceded

China agreed to recognise Korea's full independence and autonomy and to end Korean tribute and related formalities. It ceded to Japan the southern portion of Fengtian, including the Liaodong Peninsula, together with Taiwan and the Penghu Islands.

China also accepted an indemnity of 200,000,000 Kuping taels, payable in eight instalments with the last due within seven years of the exchange of ratifications and 5% annual interest on arrears. Four further cities — Shashi, Chongqing, Suzhou and Hangzhou — were opened to Japanese trade, residence, industry and manufacturing.

Signing was not the end of it

Not every clause took effect on signature. Article X delayed the legal cessation of offensive operations until ratifications were exchanged, which happened on 8 May 1895, and fighting continued in Taiwan afterwards.

Residents of the ceded territories were given two years from that exchange to sell their property and leave.

Six days after the signatures, Russia, Germany and France delivered the Triple Intervention against Japan's possession of Liaodong; the territory had been ceded in full sovereignty, and a separate convention later formally retroceded it to China.

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November 27, 1895

Alfred Nobel

Four men witnessed one of the most consequential wills ever written, and not one of them was a lawyer.

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At the Swedish-Norwegian Club

Alfred Nobel signed his third and final will at the Swedish-Norwegian Club in Paris on 27 November 1895, before four Swedish witnesses. He had spent roughly two months in the city working on the document.

It directed that his remaining realisable assets be invested as a fund, with the interest divided annually into five equal prize shares.

Five prizes, and who would choose

Nobel specified prizes for physics, chemistry, physiology or medicine, literature and peace, and named in the will itself the Swedish and Norwegian bodies that would select recipients — the peace prize going to a committee of five persons chosen by Norway's Storting.

He expressly directed that nationality not be considered, and named Ragnar Sohlman and Rudolf Liljequist as executors, with 100,000 Swedish crowns for Sohlman and 50,000 for Liljequist.

The same document revoked his previous testamentary dispositions and requested that his arteries be severed to confirm death before cremation.

No foundation, and no prize, that night

Nothing came into existence beyond a witnessed will. Implementation began only after Nobel's death on 10 December 1896.

The Storting's vote of 26 April 1897 accepted the responsibility assigned to it for the Peace Prize rather than approving the whole will. The Nobel Foundation was established under statutes approved by the Swedish government on 29 June 1900, and the first five prizes were awarded on 10 December 1901.

The economics prize was not among Nobel's categories: Sweden's central bank established it separately in 1968.

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January 12, 1896

Henry Louis Smith

The students said their professor was not even there. He denied their version — and their whole claim surfaced only about thirty years later.

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A Sunday night in the college laboratory

According to a claim first published decades later, the Davidson College juniors Osmond Barringer, Eben Hardie and Pender Porter secretly entered the college laboratory on the evening of Sunday 12 January 1896 to reproduce Röntgen's X-ray work.

They reportedly exposed a photographic plate beneath a Crookes tube for three hours. The objects on it included a cadaver finger pierced by pins and wearing a ring, a pill box of small objects, a magnifying glass and an emptied egg containing a button.

The plate reportedly showed the differing penetration of materials of different densities. The students kept the experiment quiet because they feared punishment for entering the laboratory and dissecting rooms.

Two incompatible accounts

The students said Henry Louis Smith was not present. Smith disputed their account and maintained that their experiment had followed his earlier demonstrations.

Because they said nothing at the time, the date and the attribution both rest on testimony first published about thirty years afterwards. The surviving plate shows that an early experiment happened, but not when, or who operated the equipment.

Not the first X-ray, and not the right Smith

Röntgen had produced radiographs in 1895, so no Davidson plate can be a world first. A modern scholarly review concludes that the retrospective 12 January claim cannot be corroborated, and identifies the first confirmed American success as Arthur Wright's at Yale on 27 January.

Smith's own better-documented radiograph, of a bullet in a cadaver's hand, was made on 22 February 1896.

The "H. L. Smith" of the listing is Henry Louis Smith, the Davidson physicist born in 1859 — not Herman Lyle Smith, the mathematician born in 1892 whom the corpus article describes.

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Date disputed. Sources disagree about when this happened.

What the sources leave uncertain

  • The 12 January date rests on a retrospective 1926 claim and cannot be independently corroborated by contemporary documentation.
  • Henry Louis Smith denied the students' priority account and asserted that their work followed his earlier successes or classroom demonstrations.
  • The surviving plate establishes that an early experiment occurred but does not by itself establish its date or who operated the equipment.
  • The claim should not be described as the first X-ray photograph worldwide: Röntgen produced radiographs in 1895. Nor is it the first confirmed U.S. experiment.

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April 6, 1896

1896 Summer Olympics

Paper parasols were banned because they would block the view, so women in the stadium shielded themselves with large paper fans instead.

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Easter Monday at the Panathenaic Stadium

On Easter Monday, 6 April 1896 in the Gregorian calendar — 25 March under the Julian calendar then used in Greece — the Games of the First Olympiad opened at Athens's Panathenaic Stadium.

After Crown Prince Constantine addressed his father, King George I formally declared the first international Olympic Games open. Organisers estimated the opening-day crowd at more than 80,000.

An encore before the first race

Nine bands and a 150-voice chorus performed the Olympic Hymn, composed by Spyridon Samaras to words by Kostis Palamas, and the crowd demanded an encore. The piece was not adopted as the official Olympic Hymn until the IOC's session of 1958.

Competition began at about half past three. Francis Lane won the opening 100-metre heat, and James Connolly won the triple jump, the first championship decided at the modern Games.

Nothing like a modern opening

There was no parade of nations, no torch lighting and no Olympic oath; that protocol came later. There were no gold medals either — winners received silver medals, olive crowns and diplomas at a prize ceremony held afterwards.

Participation totals are retrospective reconstructions, since no modern national-entry system existed. The IOC uses 241 male athletes from 14 national Olympic committees, while Mallon and Widlund estimate about 245 competitors associated with 15 polities.

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What the sources leave uncertain

  • The date is secure but dual-dated: 6 April 1896 Gregorian was 25 March 1896 in Greece’s Julian calendar.
  • Attendance figures are estimates. Contemporary and later sources give different stadium capacities and crowd totals.
  • Competitor and country totals are reconstructed retrospectively because there were no modern national-entry systems. The IOC uses 241 athletes and 14 NOCs; Mallon and Widlund estimate about 245 competitors associated with 15 polities.

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August 10, 1897

Aspirin

The molecule was already more than forty years old. What the laboratory journal records is getting it pure and stable, not inventing it.

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An entry in a laboratory journal

A Bayer laboratory journal dated 10 August 1897 records Felix Hoffmann's preparation of acetylsalicylic acid at the company's Elberfeld laboratory.

The reaction acetylated salicylic acid with acetic anhydride, producing a chemically pure and stable form of the compound. Nothing was isolated from a Spiraea plant that day; the starting materials were industrially available chemicals.

Charles Frédéric Gerhardt had already synthesised impure acetylsalicylic acid in 1853.

Whose synthesis?

Hoffmann performed and documented the recorded work, but the intellectual and managerial credit is disputed. Walter Sneader's archival reappraisal concluded that Arthur Eichengrün probably directed the synthesis and was instrumental in getting the compound developed.

Bayer credits Hoffmann; Sneader's BMJ study and the German Patent and Trade Mark Office treat the drug as a team product. Neither Hoffmann nor Eichengrün received German sales royalties, while the pharmacology chief Heinrich Dreser did.

Not yet a medicine, not yet a name

The immediate result was a documented laboratory sample. Pharmacological testing, physician trials, naming, trademark registration and marketing all came afterwards.

The product was neither named nor sold as Aspirin in August 1897: Bayer registered the trademark in Germany on 6 March 1899 and introduced the drug that year.

The familiar story that Hoffmann acted to help his rheumatic father first appeared decades later and is not secure contemporary evidence.

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Date disputed. Sources disagree about when this happened.

What the sources leave uncertain

  • The journal date and Hoffmann’s performance of the synthesis are well supported.
  • The lone-inventor story is disputed. Bayer credits Hoffmann, while Sneader’s BMJ study and the German Patent and Trade Mark Office conclude that Eichengrün probably played a decisive directing role and that the drug was a team product.
  • “First pure and stable form” distinguishes the Bayer preparation from earlier syntheses, but acetylsalicylic acid itself was not a new molecule in 1897.

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August 12, 1898

Spanish–American War

The document that stopped the war for Spain was signed not by a Spaniard but by France's ambassador in Washington.

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Six articles, signed in Washington

On the afternoon of 12 August 1898 in Washington, the American secretary of state William R. Day and the French ambassador Jules Cambon, acting with authority for Spain, signed a six-article preliminary peace protocol.

It required Spain to relinquish its claim to Cuba, to cede Puerto Rico and another Spanish West Indian island plus an island in the Ladrones to be selected by the United States, and to permit American occupation of Manila pending a final treaty.

Article VI suspended hostilities on signature and required both governments to notify their military and naval commanders as soon as possible.

Orders by telegraph

President William McKinley immediately proclaimed a suspension of hostilities and ordered commanders to abstain from hostile acts. The first documented Army order, to General Nelson Miles, went out at 4:23 that afternoon.

The blockades of Cuban ports and of San Juan, Puerto Rico, were lifted, and roughly 100,000 volunteers were ordered mustered out six days later.

The shooting did not stop everywhere

The suspension was legal rather than instantaneous. American and Spanish forces at Manila fought on 13 August, and USS Mangrove exchanged the war's last shots off Caibarién, Cuba, on 14 August before learning of the armistice.

This was a preliminary protocol, not the Treaty of Paris, and it settled nothing about sovereignty over the Philippines beyond American occupation of Manila.

Cuban, Filipino and Puerto Rican representatives were not parties to the bilateral instrument.

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What the sources leave uncertain

  • The protocol date is secure.
  • “Hostilities ended” describes the legal suspension, not an instantaneous worldwide ceasefire. U.S. and Spanish forces at Manila fought on 13 August, and USS Mangrove exchanged the war’s last shots off Caibarién, Cuba, on 14 August before receiving notice.

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April 11, 1899

Treaty of Paris (1898)

By the time Spain's cession of the Philippines became legally effective, the American and Filipino armies had already been fighting each other for more than two months.

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An exchange of documents in Washington

On 11 April 1899 the United States and Spain exchanged their instruments of ratification in Washington, bringing the Treaty of Paris into force four months after diplomats had signed it in Paris.

President William McKinley proclaimed and published the treaty that day, directing that its articles be observed in good faith. The proclamation did not use the listing's formula that he declared the war to be at an end.

What took effect

Spain relinquished its claim of sovereignty over Cuba and ceded Puerto Rico, other Spanish West Indian islands, Guam and the defined Philippine archipelago to the United States. The United States was to pay Spain $20,000,000 for the Philippine cession within three months of the exchange.

Residents had one year from that exchange to elect to retain Spanish nationality. The Senate had consented to ratification by 57 votes to 27 — one above the required two-thirds.

Neither independence nor peaceful possession

Cuba did not become independent that day, and it did not become an American protectorate. The treaty expressly contemplated United States occupation, which continued until 1902, and the Platt Amendment of 1901 created the protectorate-like relationship.

The transfer of Spain's asserted title to the Philippines was not the same as possession of them: the Philippine–American War had begun on 4 February 1899.

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What the sources leave uncertain

  • The date of entry into force is unambiguous: 11 April 1899.
  • Sources sometimes call the 10 December 1898 signing the formal end of the war, while treaty law records 11 April 1899—the exchange and entry-into-force date—as its final legal consummation.
  • The treaty transferred Spain’s asserted title to the Philippines, but that title and U.S. rule were actively contested by the Philippine Republic.

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June 17, 1899

Hilbert's axioms

The text that reshaped geometrical axiomatics first appeared as contribution number one in a volume commemorating the unveiling of a monument.

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First contribution in a Festschrift

David Hilbert's Grundlagen der Geometrie appeared on 17 June 1899 as the opening contribution in the Festschrift celebrating the unveiling of Göttingen's Gauss–Weber monument, published by Teubner in Leipzig.

Hilbert had reworked material from his 1898–1899 Göttingen lectures for it. The sources consulted do not document a dramatic same-day reception.

Nineteen axioms, in five groups

The published system organised Euclidean geometry around primitive objects and relations governed by axioms, rather than definitions resting on their intuitive spatial meaning. Points, lines and planes were left undefined, and the axioms constrained their relations.

The original system contained 19 axioms in five groups — incidence, betweenness or order, congruence, parallels and continuity — and the continuity group contained only an Archimedean axiom.

The familiar total of 20 describes a later amended system; the Completeness Axiom was not part of the 1899 continuity group.

"Created modern geometry" is overreach

The work used models to investigate consistency and the independence of axioms, helping make the logical relations within geometry an explicit object of study.

Calling the day the moment Hilbert created the modern concept of geometry is interpretive overreach. It transformed the axiomatic treatment of geometry while building on a tradition running from Euclid through nineteenth-century foundational research.

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November 25, 1901

Auguste Deter

On her second day in the asylum, Deter told Alzheimer she had already been there three weeks.

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Admitted on the 25th, examined on the 26th

Auguste Deter, aged 51, was admitted to Frankfurt's municipal asylum on 25 November 1901, but Alzheimer's surviving examination notes begin on 26 November. That is the better-supported date for their documented first interview, and later biographies often collapse the two.

Alzheimer systematically tested her identity, orientation, memory and ability to name objects. She gave "Auguste" as both her first and last names, and thought her husband might be named Auguste as well.

Pork, cauliflower, spinach

Although it was only her second day in the institution, Deter answered that she had been there for three weeks.

She called a pencil a pen and correctly identified several other objects. At lunch she was eating pork and cauliflower, and called it spinach.

The examinations continued on 28, 29 and 30 November, with her answers and samples of her writing recorded; the often-quoted line "I have lost myself" belongs to the entry of 29 November.

No disease was diagnosed

There was as yet nothing called Alzheimer's disease to diagnose. The clinicopathological description followed Deter's death in 1906, and Kraepelin introduced the eponym in his 1910 textbook.

The decisive observations — plaques and neurofibrillary tangles — could not be made during an interview; they came from postmortem tissue. Deter was the first published index case of the condition, not the first person ever to have it.

The original clinical file was rediscovered in Frankfurt in the 1990s, which is why the exact wording and dates of these examinations are available again.

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Date disputed. Sources disagree; the research places it at 1901-11-26.

What the sources leave uncertain

  • The listed date, 25 November, is securely supported as Deter’s admission date, but the rediscovered case file says Alzheimer’s notes begin on 26 November. Some later biographies collapse admission and first examination into the 25th. Sources: https://www.amherst.edu/media/view/294178/original/AD_Maurer%201997.pdf and https://pmc.ncbi.nlm.nih.gov/articles/PMC8095522/
  • Calling the encounter a diagnosis of 'Alzheimer’s disease' is anachronistic. The clinicopathological description followed Deter’s death in 1906; Kraepelin introduced the eponym in his 1910 textbook. Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC3181715/

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May 8, 1902

1902 eruption of Mount Pelée

A current travelled roughly 8 kilometres from the crater to Saint-Pierre in about two minutes. No evacuation had been ordered.

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Eight kilometres in about two minutes

At about 8:00 a.m. on 8 May 1902, the newly formed lava dome on Mount Pelée, at the northern end of Martinique, exploded. The crater's south-facing outlet aimed the resulting pyroclastic density current straight down at Saint-Pierre, roughly 8 kilometres away.

The current reached the city at about 8:02 a.m. Its speed has been estimated at approximately 140–175 metres per second.

Heat, dynamic pressure and the fires that followed killed virtually the entire exposed population; a major scholarly reconstruction estimates 27,000–28,000 deaths.

Not a lava flow, and not 1,075°C

The lethal agent was a pyroclastic density current, not an ordinary lava flow. Research emphasises lethal heat, dynamic pressure, fires and likely asphyxiation rather than burial under falling debris.

The current's temperature is estimated to have fallen from roughly 900°C near the magma source to about 200–400°C by the time it entered the city. A figure above 1,075°C at Saint-Pierre is untenable against those numbers.

Nor had the volcano gone quiet in early May: scholarly reconstruction has activity becoming markedly more intense and phreatomagmatic on 2–3 May, followed by destructive lahars on 5 May and overnight on 7–8 May.

The survivors, and the counts that will not settle

Louis-Auguste Cyparis survived with severe burns inside a thick-walled prison dungeon whose narrow opening faced away from the volcano — not, as often repeated, a windowless cell. Léon Compère-Léandre, a shoemaker living near the edge of the devastated zone, also escaped despite extensive burns.

Whether one or two people survived inside the city proper depends on where its edge is drawn; others survived on the fringes or aboard ships. Death estimates vary as well: 27,000–28,000 in a 1994 reconstruction, 28,000–29,000 in Lacroix-based modern work, and 30,000 in some general references.

Accounts that authorities physically kept residents in town for an election are regarded as legend. What the record documents is official reassurance and the absence of any evacuation order before the current arrived.

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What the sources leave uncertain

  • Published death estimates vary. A major 1994 reconstruction gives 27,000–28,000; Lacroix-based modern work gives 28,000–29,000; some general references round the total to 30,000. Sources: https://www.sciencedirect.com/science/article/pii/0377027394900647 and https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2020.00279/full
  • Scientific interpretations differ over whether the current began principally as a lateral dome explosion, a collapsing eruption column, or a combination. Source: https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2020.00279/full
  • Survivor counts depend on whether 'Saint-Pierre' means the city proper, its fringes or people aboard ships. The strongest volcanological source describes one, possibly two, survivors among the city’s 27,000–28,000 inhabitants. Source: https://www.sciencedirect.com/science/article/pii/0377027394900647

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November 17, 1903

2nd Congress of the Russian Social Democratic Labour Party

The future "minority" won the famous membership vote: Martov beat Lenin 28–23. And the listed split date, 17 November, has no secure event behind it.

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The vote Lenin lost

The Second Congress of the Russian Social Democratic Labour Party met in Brussels and then London from 30 July to 23 August 1903, New Style. On the membership rule, Julius Martov's broader formula defeated Vladimir Lenin's by 28 votes to 23.

Lenin's clause required recognition of the programme, financial support and personal participation in a party organisation. It did not say "full-time professional revolutionaries obeying central leadership" — that is an interpretive gloss, not the wording put to the ballot.

Forty-three delegates holding fifty-one mandates were present for that debate.

How the "majority" was assembled

Lenin's side became the majority only after seven votes left the hall: five Bund representatives and two from Rabocheye Dyelo, the "Economists". With those gone, his supporters carried the elections to the party's central bodies.

Iskra's editorial board was the other battleground, and a three-person board was elected 25–2 with 17 abstentions. Georgi Plekhanov chaired the congress, initially sided with Lenin, and then sought reconciliation by restoring the former editors.

When the congress closed on 23 August, the two groupings were rival factions inside one party rather than two separate parties.

Where 17 November came from, and didn't

The consulted congress records do not identify 17 November as the date the two factions were created. The foundational votes had all happened in July and August.

A popular History Today account dates an "irrevocable" split to 16 November and connects it with Lenin's resignation. Lenin's surviving statement is dated 1 November New Style, and on 18 November he merely requested publication of an announcement effective from 1 November.

Historians separate the 1903 emergence of factions from the later organisational rupture: the party held a Unification Congress in 1906, and some date the Bolsheviks' existence as a fully separate party to 1912.

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Date disputed. Sources disagree; the research places it at 1903-08-23.

What the sources leave uncertain

  • The listed 17 November date is not supported by the congress record. The foundational votes occurred during the July–August congress, which ended on 23 August Gregorian style. Source: https://docs.historyrussia.org/ru/nodes/19331
  • A popular History Today account dates an 'irrevocable' split to 16 November and connects it with Lenin’s resignation. Lenin’s surviving statement, however, is dated 1 November New Style; on 18 November he merely requested publication of an announcement effective from 1 November. Source: https://www.marxists.org/archive/lenin/works/1903/nov/01a.htm
  • Russian sources commonly give both Julian and Gregorian dates: 17 July–10 August Old Style equals 30 July–23 August New Style. Source: https://docs.historyrussia.org/ru/nodes/19331
  • Historians distinguish the emergence of factions in 1903 from later organizational ruptures; some date their existence as fully separate parties to 1912. Source: https://etheses.bham.ac.uk/id/eprint/191/

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