In 1840 – Samuel F.B. Morse received a U.S. patent for “Improvement in the mode of communicating information by signals by the application of electro-magnetism.” We call it Morse code.
In 1963 – A hotline was established between the Soviet Union and the United States following the Cuban Missile Crisis. While later it would become the famous “red telephone” it started as a teletype.
In 2003 – The WikiMedia Foundation was founded in St. Petersburg, Florida by Jimmy Wales to oversee the various Wiki projects like Wikipedia.