Marie and Pierre Curie proved the existence of the new element radium when they chemically isolated one-tenth of a gram of pure radium chloride.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
21st June 2019
Marie and Pierre Curie proved the existence of the new element radium when they chemically isolated one-tenth of a gram of pure radium chloride.
The Terracotta Army was discovered in Shaanxi province, China.
The Lewis and Clark Expedition began its journey home, having crossed the western United States.
While Mendeleev’s approach led to there being some gaps or spaces in ‘periods’ where he believed an element should exist, he was able to calculate the missing element’s atomic mass and properties.
Amundsen’s team arrived five weeks ahead of British explorer Robert Falcon Scott’s Terra Nova Expedition.
Darwin’s book presented evidence for the process of natural selection, and its publication sparked a seismic shift in the study of science.
Balboa’s journey involved battling with native tribes and forging a way through thick jungle, before reaching the mountain range along the Chucunaque River from where he first saw the Pacific Ocean on the morning of 25 September.
Jenner scientifically tested, and proved, that infection with the mild disease of cowpox gave immunity to the more dangerous smallpox disease.
Although Tutankhamun was one of the minor Pharaohs, the discovery of his tomb is significant for it being the most complete example of a royal tomb ever uncovered.
On the 12th August 1865 Joseph Lister carried out the world’s first antiseptic surgery using the chemical phenol, otherwise known as carbolic acid.
28th June 2015
11th November 2022
11th November 2022
1st September 2018