events
Hawley Harvey Crippen (the first felon to be arrested with the help of radio) is convicted of poisoning his wife.
Related Wikipedia articles
Hawley Harvey Crippen
American executed homeopath
Hawley Harvey Crippen, colloquially known as Dr. Crippen, was an American homeopath, ear and eye specialist and medicine dispenser who was hanged in Pentonville Prison, London, for the murder of his second wife, Cora Henrietta Crippen. He was the first criminal to be captured…Source: Wikipedia (CC BY-SA)
Radio
Use of radio waves to carry information
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 Hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They can…Source: Wikipedia (CC BY-SA)
October 22
Day of the year
October 22 is the 295th day of the year in the Gregorian calendar; 70 days remain until the end of the year.Source: Wikipedia (CC BY-SA)