1557 ⟶ Robert Recorde Introduces the Equal Sign

Robert Recorde introduces the equal sign.
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Year
1557
1614
1662
1663
1665

≕ Robert Recorde Introduces the Equal Sign

Robert Recorde introduces the equal sign.⟶
Robert Recorde Introduces the Equal Sign (1557)
MathematicsAlgebraNotationSymbolismScientific RevolutionMathematical InnovationEducation
United KingdomUnited Kingdom

➗ John Napier Publishes Logarithms

John Napier introduces the logarithm to simplify calculations.⟶
John Napier Publishes Logarithms (1614)
MathematicsScientific RevolutionNavigationAstronomy
United KingdomUnited Kingdom

⚗️ Robert Boyle Formulates Boyle's Law

Robert Boyle: Boyle's law of ideal gases.⟶
Robert Boyle Formulates Boyle's Law (1662)
Scientific RevolutionPhysicsChemistryRobert BoyleExperimentationScientific MethodMathematics
United KingdomUnited Kingdom

🔬 Robert Hooke Observes Cells

Robert Hooke discovers cells using a microscope.⟶
Robert Hooke Observes Cells (1663)
MicroscopyBiologyCell TheoryScientific RevolutionObservation
United KingdomUnited Kingdom

🔬 Robert Hooke Observes and Names the Cell

Robert Hooke: discovers the cell.⟶
Robert Hooke Observes and Names the Cell (1665)
BiologyMicroscopyCell TheoryScientific RevolutionExperimentationObservation
United KingdomUnited Kingdom