Explore the history of communication from signal fires to the Information Age
14567_History_of_the_alphabet.html
14573_Morse_code_and_the_information_age.html
14568_Ptolemaic_Rosetta_Stone.html
14571_Electrostatic_telegraphs_case_study_.html
14570_Visual_telegraphs_case_study_.html
14572_The_battery_and_electromagnetism.html
All video content by Khan Academy is under their license: CC by NC SA
Website created using Khan Academy Static Downloader