Carl Djerassi, the Jewish chemist who developed the birth control pill, has died at the age of 91.
A professor at Stanford University, he was famous for heading a research team which developed norethindrone, a synthetic molecule that became a key component of the first birth control pill.
The pill revolutionised sexual practices and women’s lives.
Mr Djerassi, who died at his San Francisco home on Friday, suffered from cancer. His death is thought to have been a result of complications deriving from the illness.