1987 - Walter Brattain died.

Brattain was an American physicist who shares the 1956 Nobel Prize in Physics with John Bardeen and William Shockley for the development of the semiconductor transistor. Transistors are electronic devices used to amplify or switch electronic signals and a basic unit in electronic design. Prior to the semiconductor transistor, transistors were high voltage vacuum tubes. The semiconductor transistor is much smaller, generates less heat and is less expensive.

1925 - Margaret Thatcher was born.

Margaret Thatcher Foundation

Thatcher was an English chemist and Prime Minister of the United Kingdom. She worked as an x-ray crystallographer under Dorothy Crowfoot Hodgkin who won the 1964 Nobel Prize in Chemistry. She also worked as a research chemist for British Xylonite Plastics and J. Lyons and Co. before entering politics.