1730 ⟶ Independent Invention of the Octant
Thomas Godfrey and John Hadley independently develop the oct...Year
1594
1730
1761
1879
1901
🧭 Backstaff Invention by John Davis
Backstaff: Invented by Captain John Davis.⟶

NavigationExplorationMaritime HistoryAge of Discovery

🧭 Independent Invention of the Octant
Thomas Godfrey and John Hadley independently develop the octant⟶

NavigationAstronomyScientific RevolutionMaritime HistoryExploration


⏱️ Harrison's Chronometer Solves Longitude Problem
The problem of longitude was finally resolved by the fourth chronometer of John Harrison⟶

NavigationMaritime HistoryScientific InnovationExplorationAge of ExplorationMeasurement

🧭 John Harrison Completes Marine Chronometer
Marine chronometer invented.⟶

NavigationMaritime HistoryScientific RevolutionExplorationClockmakingAge of DiscoveryPrecision Engineering

💡 Edison and Swan Patent Incandescent Light Bulbs
Joseph Swan and Thomas Edison independently patented functional incandescent light bulbs, ending decades of unsuccessful experimentation. Edison's high-resistance design was crucial for the development of large-scale electric lighting.⟶

ElectricityLightingIndustrial RevolutionThomas EdisonGlobal Impact


🧹 First Powered Vacuum Cleaner Patented
The first motorized cleaner using suction, a powered "vacuum cleaner", is patented independently by Hubert Cecil Booth and David T. Kenney.⟶

Industrial RevolutionPatentConsumerism

