-116 ⟶ Polybios Describes a System for Long-Distance Communication
A system for sending signs to communicate quickly over a lon...Year
-116
21
1926
1981
🏛️ Publius Mucius Scaevola Celebrates Triumph
🧱 Roman Concrete (Pozzolana) First Used
The Roman concrete (pozzolana) first used.⟶

Ancient romeRoman EmpireConcreteConstructionArchitectureInfrastructure

📺 John Logie Baird Demonstrates First Live Television System
John Logie Baird demonstrates the world's first live working television system.⟶

TelevisionInventionsCommunicationBroadcastingMass Media

📱 Televerket Launches Nordic Mobile Telephone (NMT) System
Televerket, a Swedish state-owned corporation, launched the Nordic Mobile Telephone (NMT) system.⟶

TelecommunicationsMobile PhonesCommunication



