January01 / 12
63 scientists · 3 at levels 7–9
0 at level 9 · 1 at level 8Open calendar ↗
History of science · Annual calendar
2026 — Scientists’ Birthdays
Twelve months of scientific history. Explore the birthdays and biographies of influential scientists, with the most remarkable figures highlighted by historical influence.
12Monthly calendars
611Biographies / entries
6Level 9 · Epoch-making
15Level 8 · Transformative
30Level 7 · Foundational
February02 / 12
48 scientists · 6 at levels 7–9
9Galileo GalileiFeb 157Julian SchwingerFeb 127Alessandro VoltaFeb 187Nicolaus CopernicusFeb 197Ludwig BoltzmannFeb 207Heinrich Rudolf HertzFeb 22
1 at level 9 · 0 at level 8Open calendar ↗
March03 / 12
49 scientists · 4 at levels 7–9
0 at level 9 · 1 at level 8Open calendar ↗
April04 / 12
50 scientists · 5 at levels 7–9
9Christiaan HuygensApr 149Max PlanckApr 238Leonhard EulerApr 158Carl Friedrich GaussApr 307Robert Laurence MillsApr 15
2 at level 9 · 2 at level 8Open calendar ↗
May05 / 12
57 scientists · 4 at levels 7–9
0 at level 9 · 1 at level 8Open calendar ↗
June06 / 12
44 scientists · 4 at levels 7–9
9James Clerk MaxwellJun 137Alexander FriedmannJun 167Walther NernstJun 257William Thomson (Lord Kelvin)Jun 26
1 at level 9 · 0 at level 8Open calendar ↗
July07 / 12
48 scientists · 4 at levels 7–9
8Hendrik Antoon LorentzJul 187Gottfried Wilhelm LeibnizJul 17Gregor MendelJul 207John Stewart BellJul 28
0 at level 9 · 1 at level 8Open calendar ↗
August08 / 12
68 scientists · 7 at levels 7–9
9Hermann von HelmholtzAug 318Ettore MajoranaAug 58Paul Adrien Maurice DiracAug 88Louis de BroglieAug 157William Rowan HamiltonAug 47George Gabriel StokesAug 137Augustin-Louis CauchyAug 21
1 at level 9 · 3 at level 8Open calendar ↗
September09 / 12
43 scientists · 5 at levels 7–9
8Michael FaradaySep 228Enrico FermiSep 297Murray Gell-MannSep 157Chen Ning YangSep 227Hippolyte FizeauSep 23
0 at level 9 · 2 at level 8Open calendar ↗
October10 / 12
42 scientists · 2 at levels 7–9
0 at level 9 · 1 at level 8Open calendar ↗
November11 / 12
44 scientists · 2 at levels 7–9
0 at level 9 · 2 at level 8Open calendar ↗
December12 / 12
55 scientists · 5 at levels 7–9
9Isaac NewtonDec 258Werner HeisenbergDec 57J. J. ThomsonDec 187Albert A. MichelsonDec 197Johannes KeplerDec 27
1 at level 9 · 1 at level 8Open calendar ↗
Rankings are editorial assessments of historical influence, not quantitative scientific scores. Level 9 is violet, level 8 turquoise and level 7 dark green. Select a scientist to open the detailed biography. Keep this index and twelve monthly HTML files in the same directory.
Physics Nobel laureates: Open a monthly calendar to automatically load the additional laureates with documented birth dates from the official Nobel Prize database (internet connection required). Existing biographies and historical influence ratings are preserved; newly fetched entries initially use provisional level 5. Official Nobel Prize list ↗