Ink [Ancient Inventions Series]
Invention Name Ink Short Definition Coloring fluid that leaves a stable mark on a surface Approximate Date / Period c….

Invention Name Ink Short Definition Coloring fluid that leaves a stable mark on a surface Approximate Date / Period c….

Invention Name Parchment (animal-skin writing material) Short Definition Prepared untanned skin used as a durable writing surface Approximate Date /…

Invention Name Papyrus Short Definition Writing sheet made from pressed strips of Cyperus papyrus pith. Approximate Date / Era c….

Invention Name Phoenician Alphabet Short Definition Consonant alphabet (abjad); 22 signs; right-to-left Approximate Date / Period Early Iron Age; c….

Invention Name Cuneiform Short Definition Wedge-shaped writing impressed into clay with a stylus. Approximate Date / Period c. 3200 BCE…

Invention Name Hieroglyphs (Ancient Egyptian Hieroglyphic Script) Short Definition Picture-based signs used to write the Egyptian language Approximate Date /…

Invention Name Early Algebra (India) Short Definition Rule-based equation methods in classical Indian mathematics Approximate Date / Period 1st millennium…

Invention Name Cross-Staff (Navigation) Short Definition Handheld angle-measuring staff used to relate the horizon to a celestial body. Approx. Date…

Invention Name Writing Short Definition Visible marks that represent language Approximate Date / Period c. 3400–3200 BCE Approximate Geography Mesopotamia…

Invention Name Wheel Short Definition A circular part that rotates around an axle to move loads and transmit motion with…

Invention Name Decimal Place-Value System (India) Short Definition Base-10 writing of numbers using place value and a zero marker Approximate…

Invention Name Aeolipile (Hero’s Engine) Short Definition Steam-driven rotating sphere powered by reaction jets Approximate Date / Period 1st Century…

Field Details Invention Name Automatic Temple Doors (Temple Mechanisms) Short Description Heat-triggered door-opening system using pneumatics and hydraulics Approx. Date…

Invention Name Armillary Sphere Short Definition Ring framework modeling key celestial circles Approximate Date / Period 2nd Century CE Documented…