BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Califa//Califa Calendar//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Califa — Mathematicians 2026
X-WR-CALDESC:The minds who built number\, proof\, and the symbolic language
  of modern science.
BEGIN:VEVENT
UID:mathematicians-math-newton-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260104
DTEND;VALUE=DATE:20260105
SUMMARY:Isaac Newton — birth
DESCRIPTION:Co-inventor of calculus whose Principia recast physics mathemat
 ically. Source: https://en.wikipedia.org/wiki/Isaac_Newton
URL:https://en.wikipedia.org/wiki/Isaac_Newton
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-kovalevskaya-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260115
DTEND;VALUE=DATE:20260116
SUMMARY:Sofia Kovalevskaya — birth
DESCRIPTION:First woman to earn a mathematics doctorate and professorship. 
 Source: https://en.wikipedia.org/wiki/Sofia_Kovalevskaya
URL:https://en.wikipedia.org/wiki/Sofia_Kovalevskaya
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-hilbert-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260123
DTEND;VALUE=DATE:20260124
SUMMARY:David Hilbert — birth
DESCRIPTION:Göttingen leader whose 23 problems steered modern mathematics.
  Source: https://en.wikipedia.org/wiki/David_Hilbert
URL:https://en.wikipedia.org/wiki/David_Hilbert
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-lagrange-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260125
DTEND;VALUE=DATE:20260126
SUMMARY:Joseph-Louis Lagrange — birth
DESCRIPTION:Analyst who reformulated mechanics and founded variational calc
 ulus. Source: https://en.wikipedia.org/wiki/Joseph-Louis_Lagrange
URL:https://en.wikipedia.org/wiki/Joseph-Louis_Lagrange
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-cantor-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260303
DTEND;VALUE=DATE:20260304
SUMMARY:Georg Cantor — birth
DESCRIPTION:Set theorist who showed infinities come in different sizes. Sou
 rce: https://en.wikipedia.org/wiki/Georg_Cantor
URL:https://en.wikipedia.org/wiki/Georg_Cantor
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-laplace-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260323
DTEND;VALUE=DATE:20260324
SUMMARY:Pierre-Simon Laplace — birth
DESCRIPTION:Celestial mechanician who advanced probability and the nebular 
 hypothesis. Source: https://en.wikipedia.org/wiki/Pierre-Simon_Laplace
URL:https://en.wikipedia.org/wiki/Pierre-Simon_Laplace
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-noether-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260323
DTEND;VALUE=DATE:20260324
SUMMARY:Emmy Noether — birth
DESCRIPTION:Algebraist whose theorem linked symmetry to conservation laws. 
 Source: https://en.wikipedia.org/wiki/Emmy_Noether
URL:https://en.wikipedia.org/wiki/Emmy_Noether
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-erdos-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260326
DTEND;VALUE=DATE:20260327
SUMMARY:Paul Erdős — birth
DESCRIPTION:Itinerant collaborator who published over 1\,500 papers. Source
 : https://en.wikipedia.org/wiki/Paul_Erd%C5%91s
URL:https://en.wikipedia.org/wiki/Paul_Erd%C5%91s
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-euler-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260415
DTEND;VALUE=DATE:20260416
SUMMARY:Leonhard Euler — birth
DESCRIPTION:Basel giant whose notation pervades every branch of mathematics
 . Source: https://en.wikipedia.org/wiki/Leonhard_Euler
URL:https://en.wikipedia.org/wiki/Leonhard_Euler
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-godel-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260428
DTEND;VALUE=DATE:20260429
SUMMARY:Kurt Gödel — birth
DESCRIPTION:Logician whose incompleteness theorems bounded formal proof. So
 urce: https://en.wikipedia.org/wiki/Kurt_G%C3%B6del
URL:https://en.wikipedia.org/wiki/Kurt_G%C3%B6del
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-poincare-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260429
DTEND;VALUE=DATE:20260430
SUMMARY:Henri Poincaré — birth
DESCRIPTION:Polymath whose work seeded topology and chaos theory. Source: h
 ttps://en.wikipedia.org/wiki/Henri_Poincar%C3%A9
URL:https://en.wikipedia.org/wiki/Henri_Poincar%C3%A9
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-gauss-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260430
DTEND;VALUE=DATE:20260501
SUMMARY:Carl Friedrich Gauss — birth
DESCRIPTION:Child prodigy whose number theory set modern standards of rigou
 r. Source: https://en.wikipedia.org/wiki/Carl_Friedrich_Gauss
URL:https://en.wikipedia.org/wiki/Carl_Friedrich_Gauss
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-mirzakhani-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260512
DTEND;VALUE=DATE:20260513
SUMMARY:Maryam Mirzakhani — birth
DESCRIPTION:First woman awarded the Fields Medal\, for work on surfaces. So
 urce: https://en.wikipedia.org/wiki/Maryam_Mirzakhani
URL:https://en.wikipedia.org/wiki/Maryam_Mirzakhani
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-omar-khayyam-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260518
DTEND;VALUE=DATE:20260519
SUMMARY:Omar Khayyam — birth
DESCRIPTION:Persian mathematician and poet who solved cubics geometrically.
  Source: https://en.wikipedia.org/wiki/Omar_Khayyam
URL:https://en.wikipedia.org/wiki/Omar_Khayyam
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-church-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260614
DTEND;VALUE=DATE:20260615
SUMMARY:Alonzo Church — birth
DESCRIPTION:Logician whose lambda calculus formalized computation. Source: 
 https://en.wikipedia.org/wiki/Alonzo_Church
URL:https://en.wikipedia.org/wiki/Alonzo_Church
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-pascal-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260619
DTEND;VALUE=DATE:20260620
SUMMARY:Blaise Pascal — birth
DESCRIPTION:French mathematician who founded probability theory and project
 ive geometry. Source: https://en.wikipedia.org/wiki/Blaise_Pascal
URL:https://en.wikipedia.org/wiki/Blaise_Pascal
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-turing-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260623
DTEND;VALUE=DATE:20260624
SUMMARY:Alan Turing — birth
DESCRIPTION:Father of computability theory and wartime codebreaking. Source
 : https://en.wikipedia.org/wiki/Alan_Turing
URL:https://en.wikipedia.org/wiki/Alan_Turing
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-leibniz-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260701
DTEND;VALUE=DATE:20260702
SUMMARY:Gottfried Wilhelm Leibniz — birth
DESCRIPTION:German polymath who independently devised calculus and binary n
 otation. Source: https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz
URL:https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-abel-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260805
DTEND;VALUE=DATE:20260806
SUMMARY:Niels Henrik Abel — birth
DESCRIPTION:Norwegian who proved quintic unsolvability and pioneered ellipt
 ic functions. Source: https://en.wikipedia.org/wiki/Niels_Henrik_Abel
URL:https://en.wikipedia.org/wiki/Niels_Henrik_Abel
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-cauchy-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260821
DTEND;VALUE=DATE:20260822
SUMMARY:Augustin-Louis Cauchy — birth
DESCRIPTION:Analyst who gave calculus its rigorous epsilon definitions. Sou
 rce: https://en.wikipedia.org/wiki/Augustin-Louis_Cauchy
URL:https://en.wikipedia.org/wiki/Augustin-Louis_Cauchy
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-katherine-johnson-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260826
DTEND;VALUE=DATE:20260827
SUMMARY:Katherine Johnson — birth
DESCRIPTION:NASA mathematician whose orbital calculations carried astronaut
 s home. Source: https://en.wikipedia.org/wiki/Katherine_Johnson
URL:https://en.wikipedia.org/wiki/Katherine_Johnson
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-riemann-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260917
DTEND;VALUE=DATE:20260918
SUMMARY:Bernhard Riemann — birth
DESCRIPTION:Geometer whose curved spaces became relativity's language. Sour
 ce: https://en.wikipedia.org/wiki/Bernhard_Riemann
URL:https://en.wikipedia.org/wiki/Bernhard_Riemann
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-cardano-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260924
DTEND;VALUE=DATE:20260925
SUMMARY:Gerolamo Cardano — birth
DESCRIPTION:Italian polymath who wrote the first systematic study of probab
 ility. Source: https://en.wikipedia.org/wiki/Gerolamo_Cardano
URL:https://en.wikipedia.org/wiki/Gerolamo_Cardano
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-galois-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20261025
DTEND;VALUE=DATE:20261026
SUMMARY:Évariste Galois — birth
DESCRIPTION:Revolutionary whose group theory explained polynomial solvabili
 ty. Source: https://en.wikipedia.org/wiki/%C3%89variste_Galois
URL:https://en.wikipedia.org/wiki/%C3%89variste_Galois
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-boole-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20261102
DTEND;VALUE=DATE:20261103
SUMMARY:George Boole — birth
DESCRIPTION:Self-taught logician whose algebra underpins computing. Source:
  https://en.wikipedia.org/wiki/George_Boole
URL:https://en.wikipedia.org/wiki/George_Boole
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-mandelbrot-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20261120
DTEND;VALUE=DATE:20261121
SUMMARY:Benoit Mandelbrot — birth
DESCRIPTION:Mathematician who named and visualized fractals. Source: https:
 //en.wikipedia.org/wiki/Benoit_Mandelbrot
URL:https://en.wikipedia.org/wiki/Benoit_Mandelbrot
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-lovelace-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20261210
DTEND;VALUE=DATE:20261211
SUMMARY:Ada Lovelace — birth
DESCRIPTION:Byron's daughter who wrote the first algorithm for a machine. S
 ource: https://en.wikipedia.org/wiki/Ada_Lovelace
URL:https://en.wikipedia.org/wiki/Ada_Lovelace
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-ramanujan-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20261222
DTEND;VALUE=DATE:20261223
SUMMARY:Srinivasa Ramanujan — birth
DESCRIPTION:Self-taught Indian genius whose notebooks astonished Cambridge.
  Source: https://en.wikipedia.org/wiki/Srinivasa_Ramanujan
URL:https://en.wikipedia.org/wiki/Srinivasa_Ramanujan
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-math-von-neumann-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20261228
DTEND;VALUE=DATE:20261229
SUMMARY:John von Neumann — birth
DESCRIPTION:Polymath who shaped game theory and computer architecture. Sour
 ce: https://en.wikipedia.org/wiki/John_von_Neumann
URL:https://en.wikipedia.org/wiki/John_von_Neumann
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:mathematicians-rail-2026@califa.60r.tech
DTSTAMP:20261106T104705Z
DTSTART;VALUE=DATE:20260101
DTEND;VALUE=DATE:20270101
SUMMARY:Mathematicians — year rail (14 entries)
DESCRIPTION:Year-precision entries are kept off the day grid. See the Calif
 a theme page.
TRANSP:TRANSPARENT
END:VEVENT
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