And since today is International Day of Women and Girls in Science, let's highlight a few of them - just a few women among thousands of others who helped shape the world we live in today.

Thread.
Dorothy Hodgkin discovered the structure of insulin after 36 years of work.

"I was captured for life by chemistry and by crystals."
Sophia Jex-Blake fought for women's rights to study medicine. She was involved in founding two medical schools for women.

"It seemed discreditable to Great Britain that all her daughters who desired a University education should be driven abroad to seek it."
Alice Augusta Ball developed the "Ball Method", the most effective treatment for leprosy during the early 20th century. She was 23.
Ada Lovelace is regarded as the first to recognize the full potential of computers and as one of the first computer programmers.

“That brain of mine is something more than merely mortal; as time will show.”
Valentina Tereshkova was (and remains) the first and youngest woman to have flown in space with a solo mission.

"I would enjoy flying to Mars. This was the dream of the first cosmonauts. I wish I could realize it! I am ready to fly without coming back."
Mary Anning is credited with the discovery of several dinosaur specimens that assisted in the early development of paleontology.

“It is large and heavy but… it is the first and only one discovered in Europe.”
Caroline Herschel was the first woman to discover a comet (she would spot seven more). She also detected three nebulae, in 1783.
Flossie Wong-Staal was the first scientist to clone HIV and determine the function of its genes, which was a major step in proving that HIV is the cause of AIDS.
Maria Gaetana Agnesi was the first woman to write a mathematics handbook and the first woman appointed as a mathematics professor at a university.
Nettie Stevens discovered the XY sex-determination system.
Rosalind Franklin made a crucial contribution to the discovery of the double-helix structure of DNA.

"Science and everyday life cannot and should not be separated."
Katherine Johnson performed the calculations that enabled humans to successfully achieve space flight.

“Let me do it. You tell me when you want it and where you want it to land, and I’ll do it backwards and tell you when to take off.”

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More from @marinamaral2

13 Feb
In 1889, the editor of a British magazine asked single women to write and explain why they were not married.

"Because I have other professions open to me in which the hours are shorter, the work more agreeable, and the pay possibly better." — Miss Florence Watts, 29 High Street ImageImage
"Because (like a piece of rare china) I am breakable, and mendable, but difficult to match." — Miss S. A. Roberts, The Poplars Image
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10 Feb
Colorized by me: Mother and child, Italian, Ellis Island, 1905.

Original caption: This beautiful mother and child sit outside the detention cell. Sometimes 1700 immigrants were crowded into a room which was built to accommodate 600.
Original by Lewis Hine.
Okay, let's address the elephant in the room.
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10 Feb
In 1911, Kanno Sugako - a Japanese anarchist, was executed for her part in a plot to assassinate the Emperor. She remains the only woman to be executed in Japan for treason. Radicalized at the age of 14 after being raped, she was one of Japan’s first advocates of women’s rights.
A short prison diary was kept by her.

January 23: "If I could return as a ghost, there are so many people, beginning with the judge of the Court of Cassation, that I would like to terrify. It would be wonderful to scare them witless and make them grovel."
January 23: "Truthfully, I really don’t care if they burn me and scatter my ashes in the wind, or if they throw my body in Shinagawa River. So if I am to be buried, I really want to be buried next to my younger sister."
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10 Feb
On the eruption of Mount Vesuvius, Pliny the Younger, 79 AD:

"We had scarcely sat down when a darkness came that was not like a moonless or cloudy night, but more like the black of closed and unlighted rooms. You could hear women lamenting, children crying, men shouting. /1
Some were calling for parents, others for children or spouses; they could only recognize them by their voices. Some bemoaned their own lot, other that of their near and dear. There were some so afraid of death that they prayed for death. /2
Many raised their hands to the gods and even more believed that there were no gods any longer and that this was one last unending night for the world."
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10 Feb
The utter despair in his voice
The tiny lips 😭
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9 Feb
#OnThisDay in 1907, the Mud March is the first large procession organized by the National Union of Women's Suffrage Societies.

“There shall never be another season of silence until women have the same rights men have on this green earth.” - Susan B. Anthony
More than three thousand women marched from Hyde Park Corner to the Strand in support of women's suffrage.
Poster advertising the march and meeting, 9 February 1907.
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