- Gregor Mendel's 1866 work rediscovered by three independent botanists; Hugo de Vries, Carl Correns and Erich von Tschermak who had discovered the same. The term genetics to describe a new science follows 5 years later coined by William Bateson who in 1902 happened to have done the first English translation of Mendel's work. William Bateson and William Spillman from 1901 popularised Mendels work in the English speaking world.
- George Carmichael Low explains the mosquito cycle in elephantiasis.
- First post mortem diagnosis of asbestosis published.