-293 ⟶ First Roman Sundial Introduced

First Roman sundial (293 BC).
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Year
-293
-116
21
52
77
1593

⏱️ First Roman Sundial Introduced

First Roman sundial (293 BC).⟶
First Roman Sundial Introduced (-293)
Ancient romeTimekeepingMeasurementCivilization
ItalyItaly

🧱 Roman Concrete (Pozzolana) First Used

The Roman concrete (pozzolana) first used.⟶
Roman Concrete (Pozzolana) First Used (-116)
Ancient romeRoman EmpireConcreteConstructionArchitectureInfrastructure
ItalyItaly

🖋️ Metal Pen Manufacturing Begins in Rome

The manufacture of pens and metal writing tools begins in Rome (approximate date).⟶
Metal Pen Manufacturing Begins in Rome (21)
Roman EmpireManufacturingMetalworkingAncient romeCommunicationCraftsmanship
ItalyItaly

💧 Aqua Claudia and Anio Novus Aqueducts Completed

Claudius completes the Aqua Claudia and Anio Novus, two aqueduct projects started by Caligula⟶
Aqua Claudia and Anio Novus Aqueducts Completed (52)
Roman EmpireInfrastructureAqueductClaudiusAncient rome
ItalyItaly

⚗️ Romans Develop Basic Distillation Techniques

The Romans develop a simple method of distillation.⟶
Romans Develop Basic Distillation Techniques (77)
Roman EmpireAncient romeChemistryRoman Civilization
ItalyItaly

🌡️ Galileo Galilei Develops the Thermometer

Galileo Galilei invents a thermometer.⟶
Galileo Galilei Develops the Thermometer (1593)
Galileo GalileiScientific RevolutionInstrumentationMeasurementPhysics
ItalyItaly