1828 – Butlerov, Alexander Mikhailovich was born in Tschistopol near Kazan (Russia).
1857-1868 – Butlerov was professor in Kazan and St. Petersburg.
– He was one of the foremost theorists of structural chemistry which lead him to do research in isomers.
– He also studied polymerisation reactions and synthesised the first artificial sugar, a mixture of hexoses.
1886 – He died in Biarritz (France).