1Born
Maria Skłodowska was born in Warsaw, in Congress Poland in the Russian Empire, on 7 November 1867, the fifth and youngest child of well-known teachers Bronisława, née Boguska, and Władysław Skłodowski.
2Her Mother's Death
Maria's mother Bronisława operated a prestigious Warsaw boarding school for girls; she resigned from the position after Maria was born. She died of tuberculosis in May 1878, when Maria was ten years old.
3Graduating From a Gymnasium For Girls
When she was ten years old, Maria began attending the boarding school of J. Sikorska; next she attended a gymnasium for girls, from which she graduated on 12 June 1883 with a gold medal.
4She Returned home to her Father in Warsaw
In early 1889 she returned home to her father in Warsaw. She continued working as a governess, and remained there till late 1891.
5She began Her Practical Scientific Training
She tutored, studied at the Flying University, and began her practical scientific training (1890–91) in a chemical laboratory at the Museum of Industry and Agriculture at Krakowskie Przedmieście 66, near Warsaw's Old Town.
6Bronisława Invited Maria To Paris
At the beginning of 1890, Bronisława—who a few months earlier had married Kazimierz Dłuski, a Polish physician and social and political activist—invited Maria to join them in Paris.
7Travelling to Paris
In late 1891, she left Poland for France. In Paris, Maria (or Marie, as she would be known in France) briefly found shelter with her sister and brother-in-law.
8She Enrolled In The University of Paris
She rented a garret closer to the university, in the Latin Quarter, and proceeding with her studies of physics, chemistry, and mathematics at the University of Paris, where she enrolled in late 1891.
9Marie Was awarded a Degree In Physics
Skłodowska studied during the day and tutored evenings, barely earning her keep. In 1893, she was awarded a degree in physics and began work in an industrial laboratory of Professor Gabriel Lippmann.
10Marie Was able to Earn a Second Degree
Marie continued studying at the University of Paris, and with the aid of a fellowship she was able to earn a second degree in 1894.
11Skłodowska Returned To Warsaw
For the 1894 summer break, Skłodowska returned to Warsaw, where she visited her family.She was still laboring under the illusion that she would be able to work in her chosen field in Poland, but she was denied a place at Kraków University because she was a woman.
12Discovering The Existence of X-Rays
In 1895, Wilhelm Roentgen discovered the existence of X-rays, though the mechanism behind their production was not yet understood. In 1896, Henri Becquerel discovered that uranium salts emitted rays that resembled X-rays in their penetrating power. He demonstrated that this radiation, unlike phosphorescence, did not depend on an external source of energy but seemed to arise spontaneously from uranium itself. Influenced by these two important discoveries, Curie decided to look into uranium rays as a possible field of research for a thesis.
13Pierre Curie Received His Own Doctorate
A letter from Pierre Curie convinced her to return to Paris to pursue a Ph.D. At Skłodowska's insistence, Curie had written up his research on magnetism and received his own doctorate in March 1895; he was also promoted to professor at the School.
14Marriage
On 26 July 1895 Pierre Curie married Marie in Sceaux (Seine).
15The Curries had acquired Traces of Radium
By 1898 the Curries had acquired traces of radium, but appreciable quantities, uncontaminated with barium, were still beyond reach.
16Marie Discovered that the Element Thorium was Radioactive
She began a systematic search for additional substances that emit radiation, and by 1898 she discovered that the element thorium was also radioactive.
17Pierre Curie decided to join her
Pierre Curie was increasingly intrigued by her work. By mid-1898 he was so invested in it that he decided to drop his work on crystals and to join her.
18Verifing From Her Hypothesis
On 14 April 1898, the Curies optimistically weighed out a 100-gram sample of pitchblende and ground it with a pestle and mortar. They did not realize at the time that what they were searching for was present in such minute quantities that they would eventually have to process tons of the ore.
19Announcing The Existence of an Element Which They Named "polonium"
In July 1898, Curie and her husband published a joint paper announcing the existence of an element which they named "polonium", in honour of her native Poland.
20The Curies Announced The Existence of a Second Element, Which They Named "radium"
On 26 December 1898, the Curies announced the existence of a second element, which they named "radium", from the Latin word for "ray". In the course of their research, they also coined the word "radioactivity".
21Curie became The First Woman Faculty Member at The École Normale Supérieure
In 1900, Curie became the first woman faculty member at the École Normale Supérieure, and her husband joined the faculty of the University of Paris.
22Separating One-Tenth of a Gram of Radium Chloride
The Curries undertook the arduous task of separating out radium salt by differential crystallization. From a ton of pitchblende, one-tenth of a gram of radium chloride was separated in 1902.
23She visited Poland
In 1902 she visited Poland on the occasion of her father's death.
24The Curials Published 32 Scientific Papers
Between 1898 and 1902, the Curials published, jointly or separately, a total of 32 scientific papers, including one that stated that, when exposed to radium, diseased, tumor-forming cells were destroyed faster than healthy cells.
25Marie Curie was awarded Her Doctorate
In June 1903, supervised by Gabriel Lippmann, Curie was awarded her doctorate from the University of Paris.
26Giving a Speech on Radioactivity at The Royal Institution In London
In June 1903, the couple were invited to the Royal Institution in London to give a speech on radioactivity; being a woman, she was prevented from speaking, and Pierre Curie alone was allowed to.
27The First Woman to be awarded a Nobel Prize
In December 1903, the Royal Swedish Academy of Sciences awarded Pierre Curie, Marie Curie, and Henri Becquerel the Nobel Prize in Physics, "in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel." At first the committee had intended to honor only Pierre Curie and Henri Becquerel, but a committee member and advocate for women scientists, Swedish mathematician Magnus Goesta Mittag-Leffler, alerted Pierre to the situation, and after his complaint, Marie's name was added to the nomination. Marie Curie was the first woman to be awarded a Nobel Prize.
28Curie gave birth to their Second Daughter
In December 1904, Curie gave birth to their second daughter, Ève. She hired Polish governesses to teach her daughters her native language, and sent or took them on visits to Poland.
29The Curies Finally undertook the trip to deliver the Nobel Lecture
Curie and her husband declined to go to Stockholm to receive the prize in person; they were too busy with their work, and Pierre Curie, who disliked public ceremonies, was feeling increasingly ill. As Nobel laureates were required to deliver a lecture, the Curies finally undertook the trip in 1905.
30Pierre Curie's Death
On 19 April 1906, Pierre Curie was killed in a road accident. Walking across the Rue Dauphine in heavy rain, he was struck by a horse-drawn vehicle and fell under its wheels, causing his skull to fracture. Curie was devastated by her husband's death.
31The First Woman To become a Professor at The University of Paris
On 13 May 1906 the physics department of the University of Paris decided to retain the chair that had been created for her late husband and to offer it to Marie. She accepted it, hoping to create a world-class laboratory as a tribute to her husband Pierre. She was the first woman to become a professor at the University of Paris.
32The Initiative For Creating The Radium Institute
She headed the Radium Institute (Institut du radium, now Curie Institute, Institut Curie), a radioactivity laboratory created for her by the Pasteur Institute and the University of Paris. The initiative for creating the Radium Institute had come in 1909 from Pierre Paul Émile Roux, director of the Pasteur Institute, who had been disappointed that the University of Paris was not giving Curie a proper laboratory and had suggested that she move to the Pasteur Institute.
33She isolated Pure Radius Metal
In 1910, she isolated pure radius metal. She never succeeded in isolating polonium, which has a half-life of only 138 days.
34Curie succeeded in isolating Radium
In 1910 Curie succeeded in isolating radium; she also defined an international standard for radioactive emissions that was eventually named for her and Pierre: the curie.
35Curie's Press Scandal
In 1911, it was revealed that Curie was involved in a year long affair with physicist Paul Langevin, a former student of Pierre Curie's, a married man who was estranged from his wife. This resulted in a press scandal that was exploited by her academic opponents.
36The French Academy of Sciences Failed, To Elect Her To Membership In The Academy
In 1911 the French Academy of Sciences failed, by one or two votes, to elect her to membership in the Academy. Elected instead was Édouard Branly, an inventor who had helped Guglielmo Marconi develop the wireless telegraph.
37Winning her Second Nobel Prize
International recognition for her work had been growing to new heights, and the Royal Swedish Academy of Sciences, overcoming opposition prompted by the Langevin scandal, honored her a second time, with the 1911 Nobel Prize in Chemistry. This award was "in recognition of her services to the advancement of chemistry by the discovery of the elements radium and polonium, by the isolation of radium and the study of the nature and compounds of this remarkable element."
38She Was Hospitalised With Depression and a Kidney Ailment
A month after accepting her 1911 Nobel Prize, she was hospitalised with depression and a kidney ailment.
39Declining The Warsaw Scientific Society offer
In 1912, the Warsaw Scientific Society offered her the directorship of a new laboratory in Warsaw but she declined, focusing on the developing Radium Institute to be completed in August 1914, and on a new street named Rue Pierre-Curie.
40Curie Avoided Public Life
For most of 1912 she avoided public life but did spend time in England with her friend and fellow physicist, Hertha Ayrton.
41Returning To Her Laboratory
Curie returned to her laboratory in December, after a break of about 14 months.
42She visited Poland
She visited Poland in 1913 and was welcomed in Warsaw but the visit was mostly ignored by the Russian authorities.
43The Radium Institute
Curie's second Nobel Prize enabled her to persuade the French government into supporting the Radium Institute, built in 1914, where research was conducted in chemistry, physics, and medicine.
44France's First Military Radiology Centre
During World War I, She became the director of the Red Cross Radiology Service and set up France's first military radiology centre, operational by late 1914.
45Curie Produced Hollow Needles Containing "Radium Emanation"
In 1915, Curie produced hollow needles containing "radium emanation", a colorless, radioactive gas given off by radium, later identified as radon, to be used for sterilizing infected tissue. She provided the radium from her own one-gram supply. It is estimated that over a million wounded soldiers were treated with her X-ray units.
46The 25th anniversary of The Discovery of Radium
In 1920, for the 25th anniversary of the discovery of radium, the French government established a stipend for her.
47She Toured the United States To Raise Funds For Research on Radium
In 1921, she was welcomed triumphantly when she toured the United States to raise funds for research on radium. Mrs. William Brown Meloney, after interviewing Curie, created a Marie Curie Radium Fund and raised money to buy radium, publicizing her trip.
48U.S. President Warren G. Harding Received Her at The White House
In 1921, U.S. President Warren G. Harding received her at the White House to present her with the 1 gram of radium collected in the United States, and the First Lady praised her as an example of a professional achiever who was also a supportive wife.
49She became a Fellow of The French Academy of Medicine
In 1922 she became a fellow of the French Academy of Medicine. She also travelled to other countries, appearing publicly and giving lectures in Belgium, Brazil, Spain, and Czechoslovakia.
50The International Committee on Intellectual Cooperation
In August 1922 Marie Curie became a member of the League of Nations' newly created International Committee on Intellectual Cooperation.
51She Wrote a Biography of Her Late Husband
In 1923 she wrote a biography of her late husband, titled Pierre Curie.
52Laying The Foundations For Warsaw's Radium Institute
In 1925 she visited Poland to participate in a ceremony laying the foundations for Warsaw's Radium Institute.
53Her Second American Tour
Her second American tour, in 1929, succeeded in equipping the Warsaw Radium Institute with radium; the Institute opened in 1932, with her sister Bronisława its director.
54The International Atomic Weights Committee
In 1930 she was elected to the International Atomic Weights Committee, on which she served until her death.
55Visiting Poland For The Last Time
Curie visited Poland for the last time in early 1934.
56Death
on 4 July 1934, she died at the Sancellemoz sanatorium in Passy, Haute-Savoie, from aplastic anemia believed to have been contracted from her long-term exposure to radiation.
57Her Last Book
In her last year, she worked on a book, Radioactivity, which was published posthumously in 1935.