The Pasteur Institute creates the first center for the free production and distribution of the BCG vaccine against tuberculosis

Pioneering ecologist and limnologist Maria Rosa Miracle is born. She was the first woman professor in Ecology in Spain (1981) and first president of the Spanish Association of Limnology (1993-2002)

Industrial designer Benjamin Bowden is born. He made many innovations in the automobile and bicycle industry. His best-known design is the futuristic Spacelander bicycle

The virologist Mario Rizzetto is born. He identified the delta antigen, recognized as a protein component of a new viral agent, the hepatitis delta virus (HDV)

The doctor and bacteriologist Hélène Sparrow is born. She was a pioneer in global public health treatment and worked on the development of the first vaccine against typhus

Biologist Francisco Bozinovic is born. He developed the concept of integrative biology. The species of mountain monkey Dromiciops bozinovici was named in his honour

Doctor Arturo Belleza Rotor is born. He described Rotor Syndrome, a benign hereditary disease characterized by elevated concentrations of bilirubin in the blood

Lynn Margulis submits her paper On the Origin of Mitosing Cells. This biologist is world-renowned for her studies on the origin of eukaryotic cells

The first edition of the Grace Hopper Celebration of Women in Computing takes place. Promoted by scientist Anita Borg, it is considered the world’s largest gathering of women computer scientists

Chemist Margot Becke-Goehring is born. Her work on tetrasulfur tetranitride (S4N4) is very notable. He also discovered the heptasulfide imide (S7NH)

Marine zoologist Mary J. Rathbun is born. She worked at the Smithsonian Institution, where she studied and cataloged marine invertebrates, describing numerous new species

Biochemist Fritz Albert Lipmann is born. He was co-discoverer of coenzyme A. For this, he received the Nobel Prize in Physiology or Medicine, along with Hans Adolf Krebs

Microbiologist Jules Bordet is born. He discovered the bacteria Bordetella pertussis, which causes whooping cough, an extremely acute upper respiratory disease

Biologist Karl Landsteiner is born. He discovered and identified blood groups, for which he received a Nobel Prize

Winifred Mary Beard, an expert in the study of Roman civilization, receives the Wolfson Prize. The books of this great popularizer have brought the classics closer to the general public

Chemist Henry Roscoe announced the isolation of vanadium in its pure state for the first time

Dutch cartographer and explorer Willem Barentsz discovers the Arctic archipelago of Spitsbergen

Michael Pariza and collaborators send the scientific article describing, for the first time, the anticarcinogenic effect of conjugated linoleic acid present in the fat of ruminants

The chemist Thérèse Tréfouël is born. She co-discovered the therapeutic properties of sulfonamides, starting with Prontosil, the first synthetic drug with broad bactericidal action

Astronomer María Luisa Aguilar Hurtado is born. She was the first professional astronomer in Peru, where she founded and served as director of the Astronomy and Astrophysics Seminar

At only 22 years old, Odón de Buen creates the first Spanish oceanography laboratory. He installed it aboard the frigate La Blanca

Physicists Tsung Dao Lee and Chen Ning propose that some particles are left-handed (their angular momentum points in the opposite direction to their velocity) and others are right-handed

Physicist Jane Hamilton Hall is born. She supervised the construction and commissioning of the first nuclear reactor. The Clementine used mercury as a coolant and plutonium as a metallic fuel

Dolors Planas defends her doctoral thesis Limnology of Lake Banyoles: distribution of phytoplankton. She thus became the first female doctor in ecology in Spain

Computer scientist and mathematician Annie Easley dies. She is known for her work developing software for NASA’s Centaur rockets

Nasir al-Din al-Tusi dies. He is considered the first mathematician to value trigonometry as a discipline independent of pure mathematics

Pathologist Dorothy Stuart Russell is born, a pioneer in tissue culture to study brain tumors and a world authority in the field of neuro-oncology

The doctor, anatomist and anthropologist Paul Broca is born. He discovered the speech center – Broca’s area – in aphasic patients, and that different parts of the brain have different functions

Solar astronomer Ľudmila Pajdušáková is born. She discovered several periodic and non-periodic comets, such as 45P/Honda-Mrkos-Pajdušáková, C/1946 K1, C/1951 C1 and C/1953 X1

Scientist Peter J. Van Soest is born. He revolutionized the way researchers measure the nutritional value of fibrous feeds for ruminant livestock