John Wellner was 5 years old when Charles Darwin embarks on his journey aboard HMS Beagle, during which he will begin to formulate his theory of evolution. Charles Robert Darwin, was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. He established that all species of life have descended over time from common ancestors and, in a joint publication with Alfred Russel Wallace, introduced his scientific theory that this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.
John Wellner was 14 years old when Samuel Morse receives the patent for the telegraph. Samuel Finley Breese Morse was an American painter and inventor. After having established his reputation as a portrait painter, in his middle age Morse contributed to the invention of a single-wire telegraph system based on European telegraphs. He was a co-developer of the Morse code and helped to develop the commercial use of telegraphy.
John Wellner was 33 years old when Petroleum is discovered in Titusville, Pennsylvania leading to the world's first commercially successful oil well. Petroleum is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface. It is commonly refined into various types of fuels. Components of petroleum are separated using a technique called fractional distillation, i.e. separation of a liquid mixture into fractions differing in boiling point by means of distillation, typically using a fractionating column.
John Wellner was 34 years old when American Civil War: Fort Sumter surrenders to Confederate forces. The American Civil War was a war fought in the United States from 1861 to 1865. As a result of the long-standing controversy over slavery, war broke out in April 1861, when Confederate forces attacked Fort Sumter in South Carolina, shortly after U.S. President Abraham Lincoln was inaugurated. The nationalists of the Union proclaimed loyalty to the U.S. Constitution. They faced secessionists of the Confederate States, who advocated for states' rights to expand slavery.
John Wellner was 48 years old when Winston Churchill, English colonel, journalist, and politician, Prime Minister of the United Kingdom, Nobel Prize laureate (d. 1965) Sir Winston Leonard Spencer-Churchill was a British politician, army officer, and writer, who was Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. As Prime Minister, Churchill led Britain to victory in the Second World War. Churchill represented five constituencies during his career as Member of Parliament (MP). Ideologically an economic liberal and British imperialist, he began and ended his parliamentary career as a member of the Conservative Party, which he led from 1940 to 1955, but for twenty years from 1904 he was a prominent member of the Liberal Party.
John Wellner was 59 years old when Louis Pasteur successfully tests his vaccine against rabies on Joseph Meister, a boy who was bitten by a rabid dog. Louis Pasteur was a French biologist, microbiologist and chemist renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurization. He is remembered for his remarkable breakthroughs in the causes and prevention of diseases, and his discoveries have saved many lives ever since. He reduced mortality from puerperal fever, and created the first vaccines for rabies and anthrax. His medical discoveries provided direct support for the germ theory of disease and its application in clinical medicine. He is best known to the general public for his invention of the technique of treating milk and wine to stop bacterial contamination, a process now called pasteurization. He is regarded as one of the three main founders of bacteriology, together with Ferdinand Cohn and Robert Koch, and is popularly known as the "father of microbiology".
John Wellner was 69 years old when George VI of the United Kingdom (d. 1952) George VI was King of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 until his death in 1952. He was the last Emperor of India and the first Head of the Commonwealth.