Physician Anne Szarewski is born. She showed that, without treatment, the first signs of cervical pathologies were more likely to disappear if women stopped smoking

Immunologist Rudolf Weigl is born. He developed a vaccine against typhus, the first effective against that disease

Mathematician James Joseph Sylvester is born. He contributed to the theories of matrices, algebraic invariants, numbers, partitions and combinatorics

Astronomer Elizabeth Roemer is born. Among other achievements, in 1975, she discovered Temisto, a satellite of Jupiter, together with Charles T. Kowal

The doctor and activist Josué de Castro is born. Among others, he presided over the FAO. His best-known work is Geopolitics of Hunger, where he sheds light on the complexity of the problem of malnutrition

Bacteriologist Ida A. Bengtson dies. She researched anaerobic organisms, being known for her work classifying Clostridium botulinum, the bacillus that produces botulinum toxin

Chemist John Cornforth is born. He received the Nobel Prize in Chemistry in 1975 for his work on the stereochemistry of enzymatically catalyzed reactions

Pharmacologist Marthe Louise Vogt is born. He made important contributions to understanding the role of neurotransmitters in the brain, especially epinephrine

Veterinarians Segismundo Malats and Hipólito Estévez are commissioned to develop the plan to create two schools of veterinary medicine in Spain, one in Madrid and the other in Córdoba

The mathematician and physicist Émilie du Châtelet dies. She was a translator of Isaac Newton’s works into French and a disseminator of his theories

Botanist Elke Mackenzie is born. She specialized in the study of lichens and stood out for her fruitful polar explorations

The island of Mallorca names Odón de Buen an adopted son. The legacy of this prominent naturalist, founder of the Spanish Institute of Oceanography, is being recovered in recent years

Geneticist Chana Malogolowkin-Cohen is born. She was a pioneer in the study of the genetics of the fruit fly in Brazil and in techniques to prevent the transmission of viruses by mosquitoes

The Luna probe fulfills its objective of crashing into the Moon, specifically in the Mare Imbrium, two days after its launch

The patent for the theremin is approved, an electronic musical instrument that is controlled without the need for physical contact

Psychologist Karen Horney is born. A pioneer in feminist psychology, her theories questioned some of Sigmund Freud’s traditional approaches

Neurologist Anita Harding is born. She was co-discoverer of the first mutation of mitochondrial DNA in human diseases and of the concept of heteroplasmic tissue in mutant mitochondrial DNA

The Graf Zeppelin airship flies for the first time. It was the largest aircraft of its time, measuring 236.6 meters in length. It made more than 600 flights, including one research flight to the Arctic

The Geological and Mining Institute of Spain (IGME) and its French equivalent, the BGRM, present the first complete geological map of the Pyrenees

Mathematician Dorothy Vaughan is born. An expert in the Fortran programming language, she led West Area Computers, a segregated team made up of African-American women with mathematical training

Physicist and philosopher of science Mario Bunge is born. He was very critical against pseudoscience, which included homeopathy, psychoanalysis, neoclassical microeconomics and praxeology

Scientist Teresa Mendizábal is born. She studied soil erosion, land degradation and desertification. She acted as an expert against desertification for the United Nations

Mathematician Su Buqing is born. He is primarily known for his achievements in general space differential geometry

Chemist and physicist Georges Claude is born. He invented a system to liquefy air and the neon lamp

The entomologist Agostino Bassi is born. He is known for his study of muscardine, a disease that attacks the silkworm, being a precursor to the germ theory of infectious diseases

Ichthyologist Margaret M. Smith is born. In addition to being considered one of the most important naturalist illustrators in the world, she described numerous species of fish off the coast of South Africa

Ben Barres, neurobiologist and professor at Stanford School of Medicine, dies. He was the first trans person to enter the National Academy of Sciences in the United States (2013)

The virologist and immunologist Margarita del Val is born. She was one of the greatest defenders of the effectiveness of vaccines and quarantines during the SARS-CoV-2 (COVID-19) pandemic

Inventor László Bíró, also known as Ladislao Biro, is born. He patented numerous patents, such as a washing machine or a perfume bottle, but the most famous worldwide is the ballpoint pen

Virologist María Guadalupe Guzmán Tirado receives the L’Oréal-UNESCO Award for Women in Science for helping to better understand the pathogenesis, treatment and prevention of dengue