she invented penicillin.
Hobby was invented from the birth of people. Even trillions of years ago, people like doing things for pleasure. maybe they did not invent the word "hobby" for them yet but they still had them.
Cormack described it as a "hobby".
He invented the draisine AKA bone-shaker AKA hobby horse.
Gladys Cromwell has written: 'Poems By Gladys Cromwell'
Gladys Johnston's birth name is Gladys Johnson.
Gladys Gale's birth name is Gladys Lanphere.
Gladys Atwater's birth name is Gladys Valerga.
Gladys Blake's birth name is Gladys Timmons.
Gladys Brockwell's birth name is Lindeman, Gladys.
Gladys Lehman's birth name is Gladys Collins.
Gladys Henson's birth name is Gladys Gunn.
Gladys Hanson's birth name is Snook, Gladys.