1837 ⟶ Samuel Morse Develops Morse Code

Samuel Morse invents Morse code.
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1826
1835
1837
1839
1844
1878

⚙️ Samuel Morey Patents Internal Combustion Engine

American Samuel Morey patents the internal combustion engine.⟶
Samuel Morey Patents Internal Combustion Engine (1826)
Industrial RevolutionPatents
United StatesUnited States

💡 Joseph Henry Develops the Electromechanical Relay

Joseph Henry invents the electromechanical relay.⟶
Joseph Henry Develops the Electromechanical Relay (1835)
Electrical EngineeringElectromagnetismCommunicationTelegraphyAmerican History
United StatesUnited States

✉️ Samuel Morse Develops Morse Code

Samuel Morse invents Morse code.⟶
Samuel Morse Develops Morse Code (1837)
CommunicationTelegraphSamuel MorseElectrical Engineering
United StatesUnited States

⛏️ William Otis Develops the Steam Shovel

William Otis invents the steam shovel.⟶
William Otis Develops the Steam Shovel (1839)
Industrial RevolutionConstructionTransportationMining
United StatesUnited States

📡 First Public Telegraph Line Begins Operation

First publicly funded telegraph line in the world—between Baltimore and Washington—sends demonstration message on 24 May, ushering in the age of the telegraph. This message read "What hath God wrought?" (Bible, Numbers 23:23)⟶
First Public Telegraph Line Begins Operation (1844)
TelegraphCommunicationAmerican HistorySamuel MorseTransportation
United StatesUnited States

📞 First Commercial Telephone Exchange Established

First commercial telephone exchange in New Haven, Connecticut.A barricade in the Paris Commune, 18 March 1871. Around 30,000 Parisians were killed, and thousands more were later executed.⟶
First Commercial Telephone Exchange Established (1878)
CommunicationInfrastructure
United StatesUnited States