1845 - Horace Wells used nitrous oxide as an anaesthetic
1846 - William Morton, an American dentist, used ether when removing teeth. It was also used for operations such as removing tumours.
1847 - James Simpson experimented with chloroform.
1848 - Hannah Greener was the first patient to die from chloroform poisoning after an operation on her toe.
1853 - Queen Victoria was given chloroform for the birth of her son.
1861 - Louis Pasteur published his Germ Theory.
1867 - Joseph Lister, a Scottish surgeon, experimented with carbolic acid spray to…