Who was the first British Prime Minister with a science degree?

Margaret Hilda Thatcher, Baroness Thatcher (née Roberts; 13 October 1925 – 8 April 2013) was a British stateswoman who was the Prime Minister of the United Kingdom from 1979 to 1990 and the Leader of the Conservative Party from 1975 to 1990. She was the longest-serving British prime minister of the 20th century, and the first woman to have held the office. A Soviet journalist dubbed her The Iron Lady, a nickname that became associated with her uncompromising politics and leadership style. As Prime Minister, she implemented policies that have come to be known as Thatcherism.

Margaret graduated from Oxford in 1947 with Second-Class Honours in the four-year Chemistry Bachelor of Science degree, specialising in X-ray crystallography under the supervision of Dorothy Hodgkin. Her dissertation was on the structure of the antibiotic gramicidin. Even while working on chemistry, she was already thinking towards law and politics. She was reportedly more proud of becoming the first Prime Minister with a science degree than the first female Prime Minister, and as Prime Minister attempted to preserve Somerville as a women's college.