In July 1911, while she was away in Belgium, the scandal broke in the Parisian press, and the name that had been whispered in the corridors of the Sorbonne became a public sensation. By the time Marie Curie returned to her home in Paris, a furious mob had gathered on her street, directly outside her door. The crowd was hostile, and no one knew what they might do. She fled to the home of a friend, and the letters that found her there were mostly poison, but one of them came from Albert Einstein, who urged her to ignore the sensationalist newspapers.
The most decorated woman in French science was, in that moment, a woman alone in hiding. Her story had begun modestly enough. Born Maria Salomea Sklodowska on 7 November 1867 in Warsaw, she was the youngest of five children of the schoolteachers Bronislawa and Wladyslaw Sklodowski. At the time, Warsaw was part of Congress Poland, a semi-autonomous entity within the Russian Empire.
Her parents instilled in their children a passion for knowledge, but the family remained poor, in part because their ancestors had taken part in failed uprisings against the Russian Empire and been punished with the confiscation of their wealth and property. Her father, a teacher of mathematics and physics, was barred from teaching laboratory courses in Polish schools. So he brought all of his equipment home and allowed his children to use it. Maria excelled academically, graduating from high school early, at fifteen.
But after school she suffered from nervous problems that would likely be classified as depression today. She spent time in the countryside to recover, then returned to Warsaw with the intention of pursuing higher education. She discovered that, as a woman, she was forbidden from enrolling in any university. To work around the ban, she joined the so-called Flying University, a secret Polish national institution that operated in the shadows, offering evening classes beyond the reach of the tsarist authorities and admitting women.
There she and her sister Bronislawa received their university education. The two sisters soon struck a mutually beneficial arrangement: Maria would work as a private tutor in Warsaw to support Bronislawa’s move to Paris to study medicine. In return, Bronislawa agreed to help Maria financially two years after her graduation. Maria spent a brief period tutoring in Warsaw before moving to a small town in the Polish countryside, where she worked as a governess and lived with her father’s wealthy relatives, the Zorawski family.
There she fell in love with Kazimierz, the family’s son, who would later become a mathematician. The two young people decided to marry, but his parents, though fond of Maria, refused to allow their son to marry a poor girl. The engagement ended quickly. Maria was deeply grieved and insulted.
She did what she did best: she immersed herself in scientific books and pursued knowledge. Over the following years, she continued working toward her dream of becoming a scientist in Paris. She held various jobs, earning varying sums that helped finance her future travels and her sister’s education. By 1891, at twenty-four, it was time to go.
Upon arriving in Paris she began working immediately. After a short stay with her sister and brother-in-law, she found modest lodgings near the University of Paris, where she enrolled to study physics, chemistry, and mathematics. She lived simply, so as not to distract herself from her studies. She was so absorbed that she sometimes forgot to eat and once fainted from hunger.
To reduce expenses, she gave up heating her home and simply wore as much clothing as she could. Her efforts paid off when she received a degree in physics in 1893. She had achieved her dream of becoming a scientist and began working in a laboratory. The work funded her further studies, and she earned a second degree, in chemistry, a year later.
Through her work, she met the scientist Pierre Curie. Their shared interests drew them together, and soon love grew between them. Pierre proposed marriage. Marie refused at first, declaring that she planned to return to live and work in her homeland, Poland.
Pierre, deeply in love, was undeterred, and said he would follow her to Poland and teach her French if necessary. In 1894, Marie returned to Warsaw to visit her family and look for work in her field. Things were not as they were in Paris. She applied for a position at the University of Krakow and was rejected: she was a woman.
She told Pierre, who was saddened, and he wrote back urging her to return to Paris and continue her studies. France, he convinced her, was the only place where her talent could truly flourish. She returned to France, and the two married in a civil ceremony on 26 July 1895. Not being the romantic type, Marie wore a dark blue dress on her wedding day instead of the traditional white one, a dress she would keep for years of laboratory work because it was practical and did not easily show dirt and chemical stains.
They were well matched, with many shared interests, including cycling and travel, and above all, a love of science. By all accounts, their marriage was happy, and they had two daughters. In 1895, the scientific community was stirred by a new discovery: X-rays. Marie Curie was immediately fascinated and shifted her focus to the study of radioactivity.
In collaboration with her husband, she discovered the element radium, and her pioneering research led her to coin the term radioactivity. After the discovery, a huge and profitable industry grew up around the element. But the Curies never saw the fruits of their labor. True to their ethics, they humbly refused to patent their discovery, believing that scientists should focus on the benefit of humanity rather than personal gain.
That same modesty likely meant they never had a proper laboratory. They conducted their research in a converted shed. The barn lacked ventilation, had a leaking roof, was freezing in winter, and sweltering in summer. In hindsight, it was a very bad place to work with radiation.
The Curies were not fully aware of the serious dangers of radiation exposure. Radium was not the only element they discovered. Shortly before that breakthrough, the couple had discovered another new element, which they named polonium, in honor of Marie’s homeland. Though she had suffered much rejection there, she still held great love for her native country and hoped the tribute would draw the world’s attention to Poland’s struggle for independence.
Their research did not go unnoticed. For their significant contributions, the couple was jointly awarded the Nobel Prize in Physics in 1903. Initially, the Swedish Academy planned to honor only Pierre and Henri Becquerel. But Pierre insisted that Marie receive the same recognition.
It was an unprecedented achievement: Marie was the first woman in history to receive the prize, and it was the first time a married couple had won a Nobel Prize together. It would be only the first of many accomplishments for the Curie family, which would eventually collect five Nobel Prizes. In 1906, a horse-drawn carriage struck Pierre, killing him. Marie was devastated, but in a strange way, it advanced her career.
Pierre had held a position in the physics department at the University of Paris. In recognition of the couple’s efforts, they offered her the position after his death. She accepted, becoming the university’s first female professor. Over the next five years, she continued her important research with the support of the university’s resources.
For the most part, the press left her alone until 1911, when it uncovered a shocking story. Marie had been having an affair with Paul Langevin, a married man who had been a student of her late husband. The media stirred up a scandal that her academic rivals exploited. Curie was five years older than Langevin, and so she was portrayed as having taken advantage of the younger man.
Many newspapers vilified her for her foreign origins, and she was subjected to baseless anti-Semitic attacks, despite being Catholic. While she was away in Belgium when the scandal broke, it was on her return to Paris that she found the angry crowd in front of her home. But Marie was strong-willed, and she had overcome many challenges before. She simply continued her life.
Despite the Langevin scandal, she was awarded another Nobel Prize in 1911, this time in chemistry. It was yet another significant achievement: she became the first person to win a Nobel Prize twice, and the first to win it in two different fields, physics and chemistry. Regardless, her mental health soon deteriorated sharply. Just one month after accepting the prize, she was admitted to the hospital with kidney problems and depression.
She stayed out of public view for fourteen months. Everything changed with the outbreak of the First World War. Marie roused herself to harness her scientific abilities for a positive purpose. She realized that wounded soldiers had a better chance of survival if they underwent immediate surgery, so she developed mobile radiography units so that field hospitals could perform X-ray examinations.
The French troops called these units “Petite Curie. ” To further support the French war effort, Marie offered to donate her Nobel Prize medals to the French national bank. They were made of gold, and she hoped they would increase the bank’s treasury. Her offer was politely refused.
She did, however, spend the remaining money from her Nobel Prize money on war bonds. The French never forgot her generosity. After the war, Marie founded the Curie Institute in Paris, a private, non-profit institution conducting research in medicine, biology, and biophysics. Twelve years later, despite all the obstacles she had faced as a woman in Poland, she established a second Curie Institute in Warsaw.
It became an enduring testament to her legacy; both institutes remain active centers of medical research to this day. Marie Curie died in 1934 in the mountains of southeastern France. The cause of death was aplastic anemia, which damaged her bone marrow. It is believed that the condition resulted from prolonged exposure to radiation throughout her career, as well as her unprotected exposure to radium and X-rays during the First World War.
Even her laboratory notebooks, diaries, and personal papers remain contaminated with radium-226 to this day. They are kept in lead-lined boxes, and any researcher who wishes to handle them must wear protective equipment. The French Republic honored her legacy by burying her remains in the Pantheon in Paris, its highest tribute.
