mathphilately
@mathphilately.bsky.social
Sharing the history of math and science (usually) through my collection of (mostly) math stamps & other miscellany. You can see more at https://www.instagram.com/mathphilately
Starting posting a series of stamps from Nicaragua … “THE 10 MATHEMATICAL FORMULAS THAT CHANGED THE FACE OF THE EARTH.”
Check it out … www.instagram.com/mathphilately
Check it out … www.instagram.com/mathphilately
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November 4, 2025 at 2:08 PM
Starting posting a series of stamps from Nicaragua … “THE 10 MATHEMATICAL FORMULAS THAT CHANGED THE FACE OF THE EARTH.”
Check it out … www.instagram.com/mathphilately
Check it out … www.instagram.com/mathphilately
Reposted by mathphilately
Today is August 24. Happy Birthday to Karen Uhlenbeck, born on this date in 1942. She won the 2019 Abel Prize in mathematics for "her pioneering achievements in geometric partial differential equations, gauge theory, and integrable systems, and for the fundamental impact of her work."
August 24, 2025 at 2:16 PM
Today is August 24. Happy Birthday to Karen Uhlenbeck, born on this date in 1942. She won the 2019 Abel Prize in mathematics for "her pioneering achievements in geometric partial differential equations, gauge theory, and integrable systems, and for the fundamental impact of her work."
Reposted by mathphilately
Paul Erdős was famous for his ability to come up with deep conjectures that continue to guide mathematics research today. Recently, a question that Erdős posed about addition was solved by a grad student. www.quantamagazine.org/graduate-stu...
May 23, 2025 at 3:28 PM
Paul Erdős was famous for his ability to come up with deep conjectures that continue to guide mathematics research today. Recently, a question that Erdős posed about addition was solved by a grad student. www.quantamagazine.org/graduate-stu...
Happy Birthday to Bertrand Russell … May 18, 1872.
“In a long and varied career Russell published a vast number of books on logic, theory of knowledge, and many other topics. His best known work was Principia Mathematica.”
mathshistory.st-andrews.ac.uk/Biographies/...
“In a long and varied career Russell published a vast number of books on logic, theory of knowledge, and many other topics. His best known work was Principia Mathematica.”
mathshistory.st-andrews.ac.uk/Biographies/...
May 18, 2025 at 12:19 PM
Happy Birthday to Bertrand Russell … May 18, 1872.
“In a long and varied career Russell published a vast number of books on logic, theory of knowledge, and many other topics. His best known work was Principia Mathematica.”
mathshistory.st-andrews.ac.uk/Biographies/...
“In a long and varied career Russell published a vast number of books on logic, theory of knowledge, and many other topics. His best known work was Principia Mathematica.”
mathshistory.st-andrews.ac.uk/Biographies/...
Happy Birthday to Richard Feynman … May, 11 1918.
A physicist known for his work in the path integral formulation of quantum mechanics, quantum electrodynamics, the physics of superfluidity & particle physics. Feynman received the Nobel Prize in Physics in 1965.
en.m.wikipedia.org/wiki/Richard...
A physicist known for his work in the path integral formulation of quantum mechanics, quantum electrodynamics, the physics of superfluidity & particle physics. Feynman received the Nobel Prize in Physics in 1965.
en.m.wikipedia.org/wiki/Richard...
May 11, 2025 at 1:10 PM
Happy Birthday to Richard Feynman … May, 11 1918.
A physicist known for his work in the path integral formulation of quantum mechanics, quantum electrodynamics, the physics of superfluidity & particle physics. Feynman received the Nobel Prize in Physics in 1965.
en.m.wikipedia.org/wiki/Richard...
A physicist known for his work in the path integral formulation of quantum mechanics, quantum electrodynamics, the physics of superfluidity & particle physics. Feynman received the Nobel Prize in Physics in 1965.
en.m.wikipedia.org/wiki/Richard...
Happy (belated) Birthday to Sophie Germain April 1, 1776 …
“Germain made a major contributions to number theory (in particular, the theory of primes), acoustics and elasticity.”
The stamp from France 2014 celebrates her 240th birthday.
mathshistory.st-andrews.ac.uk/Biographies/...
“Germain made a major contributions to number theory (in particular, the theory of primes), acoustics and elasticity.”
The stamp from France 2014 celebrates her 240th birthday.
mathshistory.st-andrews.ac.uk/Biographies/...
April 5, 2025 at 11:42 AM
Happy (belated) Birthday to Sophie Germain April 1, 1776 …
“Germain made a major contributions to number theory (in particular, the theory of primes), acoustics and elasticity.”
The stamp from France 2014 celebrates her 240th birthday.
mathshistory.st-andrews.ac.uk/Biographies/...
“Germain made a major contributions to number theory (in particular, the theory of primes), acoustics and elasticity.”
The stamp from France 2014 celebrates her 240th birthday.
mathshistory.st-andrews.ac.uk/Biographies/...
Happy Birthday to Stefan Banach … March 30, 1892.
“Banach founded modern functional analysis and made major contributions to the theory of topological vector spaces. In addition, he contributed to measure theory, integration, and orthogonal series.”
mathshistory.st-andrews.ac.uk/Biographies/...
“Banach founded modern functional analysis and made major contributions to the theory of topological vector spaces. In addition, he contributed to measure theory, integration, and orthogonal series.”
mathshistory.st-andrews.ac.uk/Biographies/...
March 30, 2025 at 1:00 PM
Happy Birthday to Stefan Banach … March 30, 1892.
“Banach founded modern functional analysis and made major contributions to the theory of topological vector spaces. In addition, he contributed to measure theory, integration, and orthogonal series.”
mathshistory.st-andrews.ac.uk/Biographies/...
“Banach founded modern functional analysis and made major contributions to the theory of topological vector spaces. In addition, he contributed to measure theory, integration, and orthogonal series.”
mathshistory.st-andrews.ac.uk/Biographies/...
Happy Belated Birthday to Ulugh Beg … March 22, 1393.
“Beg was a mathematician and astronomer. He founded an important centre for study at Samarkand staffed with the best scientists of the time. He did important early work on trigonometry.”
mathshistory.st-andrews.ac.uk/Biographies/...
“Beg was a mathematician and astronomer. He founded an important centre for study at Samarkand staffed with the best scientists of the time. He did important early work on trigonometry.”
mathshistory.st-andrews.ac.uk/Biographies/...
March 23, 2025 at 1:30 PM
Happy Belated Birthday to Ulugh Beg … March 22, 1393.
“Beg was a mathematician and astronomer. He founded an important centre for study at Samarkand staffed with the best scientists of the time. He did important early work on trigonometry.”
mathshistory.st-andrews.ac.uk/Biographies/...
“Beg was a mathematician and astronomer. He founded an important centre for study at Samarkand staffed with the best scientists of the time. He did important early work on trigonometry.”
mathshistory.st-andrews.ac.uk/Biographies/...
Happy Birthday Pierre-Simon Laplace … March 23, 1749.
“Laplace proved the stability of the solar system. In analysis he introduced the potential function & Laplace coefficients. He also put the theory of mathematical probability on a sound footing.”
mathshistory.st-andrews.ac.uk/Biographies/...
“Laplace proved the stability of the solar system. In analysis he introduced the potential function & Laplace coefficients. He also put the theory of mathematical probability on a sound footing.”
mathshistory.st-andrews.ac.uk/Biographies/...
March 23, 2025 at 12:39 PM
Happy Birthday Pierre-Simon Laplace … March 23, 1749.
“Laplace proved the stability of the solar system. In analysis he introduced the potential function & Laplace coefficients. He also put the theory of mathematical probability on a sound footing.”
mathshistory.st-andrews.ac.uk/Biographies/...
“Laplace proved the stability of the solar system. In analysis he introduced the potential function & Laplace coefficients. He also put the theory of mathematical probability on a sound footing.”
mathshistory.st-andrews.ac.uk/Biographies/...
March 21, 1685 … the birthday of Johann Sebastian Bach … the mathematician’s composer!
March 22, 2025 at 11:47 AM
March 21, 1685 … the birthday of Johann Sebastian Bach … the mathematician’s composer!
Happy Birthday to this guy … and Happy Pi Day!
March 14, 2025 at 9:08 PM
Happy Birthday to this guy … and Happy Pi Day!
On March 9, 1736 ... "Euler received a letter from the mayor of Danzig (now Gdansk in Poland) challenging him to solve the Königsburg Bridge Problem."
This postcard from South Korea 2014 celebrates the famous problem.
This postcard from South Korea 2014 celebrates the famous problem.
March 9, 2025 at 1:51 PM
On March 9, 1736 ... "Euler received a letter from the mayor of Danzig (now Gdansk in Poland) challenging him to solve the Königsburg Bridge Problem."
This postcard from South Korea 2014 celebrates the famous problem.
This postcard from South Korea 2014 celebrates the famous problem.
In honor of International Women's Day, here are three stamps celebrating Sofia Kovalevskaya, Marie Curie and Florence Nightingale.
March 9, 2025 at 12:09 AM
In honor of International Women's Day, here are three stamps celebrating Sofia Kovalevskaya, Marie Curie and Florence Nightingale.
Happy Birthday Laurent Schwartz (1915 - 2020) …
From MacTutor … “Schwartz was a French mathematician who is best known for his work in the theory of distributions.” He won the Fields Medal for this work in 1950.
Complete Biography … mathshistory.st-andrews.ac.uk/Biographies/...
From MacTutor … “Schwartz was a French mathematician who is best known for his work in the theory of distributions.” He won the Fields Medal for this work in 1950.
Complete Biography … mathshistory.st-andrews.ac.uk/Biographies/...
March 5, 2025 at 10:26 PM
Happy Birthday Laurent Schwartz (1915 - 2020) …
From MacTutor … “Schwartz was a French mathematician who is best known for his work in the theory of distributions.” He won the Fields Medal for this work in 1950.
Complete Biography … mathshistory.st-andrews.ac.uk/Biographies/...
From MacTutor … “Schwartz was a French mathematician who is best known for his work in the theory of distributions.” He won the Fields Medal for this work in 1950.
Complete Biography … mathshistory.st-andrews.ac.uk/Biographies/...
Leo Szilárd (1898 - 1964) …
Stamp - Hungary 1998 MNH, celebrating the 100th anniversary of his birth.
Wikipedia - “Szilárd was a Hungarian-born physicist/biologist & inventor who made numerous important discoveries in nuclear physics & biology. He conceived the nuclear chain reaction in 1933.”
Stamp - Hungary 1998 MNH, celebrating the 100th anniversary of his birth.
Wikipedia - “Szilárd was a Hungarian-born physicist/biologist & inventor who made numerous important discoveries in nuclear physics & biology. He conceived the nuclear chain reaction in 1933.”
February 26, 2025 at 10:38 PM
Leo Szilárd (1898 - 1964) …
Stamp - Hungary 1998 MNH, celebrating the 100th anniversary of his birth.
Wikipedia - “Szilárd was a Hungarian-born physicist/biologist & inventor who made numerous important discoveries in nuclear physics & biology. He conceived the nuclear chain reaction in 1933.”
Stamp - Hungary 1998 MNH, celebrating the 100th anniversary of his birth.
Wikipedia - “Szilárd was a Hungarian-born physicist/biologist & inventor who made numerous important discoveries in nuclear physics & biology. He conceived the nuclear chain reaction in 1933.”
A great article … for those interested in reading more, check out the incredible book “Einstein's Tutor: The Story of Emmy Noether and the Invention of Modern Physics” by Lee Phillips.
www.goodreads.com/en/book/show...
www.goodreads.com/en/book/show...
February 17, 2025 at 3:14 PM
A great article … for those interested in reading more, check out the incredible book “Einstein's Tutor: The Story of Emmy Noether and the Invention of Modern Physics” by Lee Phillips.
www.goodreads.com/en/book/show...
www.goodreads.com/en/book/show...
On this Presidents Day, we celebrate the only US president to ever publish a mathematical proof … President Garfield and his proof of the Pythagorean Theorem.
Details: maa.org/press/period...
Details: maa.org/press/period...
February 17, 2025 at 1:18 PM
On this Presidents Day, we celebrate the only US president to ever publish a mathematical proof … President Garfield and his proof of the Pythagorean Theorem.
Details: maa.org/press/period...
Details: maa.org/press/period...
Celebrating Georg Cantor …
Stamp - Ukraine 2019 MNH
From MacTutor - "Cantor can be considered as the founder of set theory & introduced the concept of infinite numbers with his discovery of cardinal numbers."
Complete Biography - mathshistory.st-andrews.ac.uk/Biographies/...
#philately
Stamp - Ukraine 2019 MNH
From MacTutor - "Cantor can be considered as the founder of set theory & introduced the concept of infinite numbers with his discovery of cardinal numbers."
Complete Biography - mathshistory.st-andrews.ac.uk/Biographies/...
#philately
February 16, 2025 at 3:17 PM
Celebrating Georg Cantor …
Stamp - Ukraine 2019 MNH
From MacTutor - "Cantor can be considered as the founder of set theory & introduced the concept of infinite numbers with his discovery of cardinal numbers."
Complete Biography - mathshistory.st-andrews.ac.uk/Biographies/...
#philately
Stamp - Ukraine 2019 MNH
From MacTutor - "Cantor can be considered as the founder of set theory & introduced the concept of infinite numbers with his discovery of cardinal numbers."
Complete Biography - mathshistory.st-andrews.ac.uk/Biographies/...
#philately
My favorite stamp celebrating the legendary Paul Erdös …
From MacTutor - "Erdös posed and solved problems in number theory and other areas and founded the field of discrete mathematics."
Complete biography - mathshistory.st-andrews.ac.uk/Biographies/...
From MacTutor - "Erdös posed and solved problems in number theory and other areas and founded the field of discrete mathematics."
Complete biography - mathshistory.st-andrews.ac.uk/Biographies/...
February 16, 2025 at 2:45 PM
My favorite stamp celebrating the legendary Paul Erdös …
From MacTutor - "Erdös posed and solved problems in number theory and other areas and founded the field of discrete mathematics."
Complete biography - mathshistory.st-andrews.ac.uk/Biographies/...
From MacTutor - "Erdös posed and solved problems in number theory and other areas and founded the field of discrete mathematics."
Complete biography - mathshistory.st-andrews.ac.uk/Biographies/...
Hoping to share my love of math and its history through stamps!
February 16, 2025 at 2:40 PM
Hoping to share my love of math and its history through stamps!