query: When was the AED invented?
passage: Automated external defibrillator
The first use of an external defibrillator on a human was in 1947 by Claude Beck.[29] The portable version of the defibrillator was invented in the mid-1960s by Frank Pantridge in Belfast, Northern Ireland, a pioneer in emergency medical treatment.[30][31]
passage: Edgar Adrian
After completing a medical degree in 1915, he did clinical work at St Bartholomew's Hospital London during World War I, treating soldiers with nerve damage and nervous disorders such as shell shock. Adrian returned to Cambridge as a lecturer and in 1925 began research on the human sensory organs by electrical methods.