1835 – Born on the 31st of October in Berlin.
1853-1855 – Devoted his first two years as a student at the University of Berlin chiefly to physics and mathematics.
1856- His love for chemistry re-awakened and drew him to Bunsen’s laboratory in Heidelberg.
1857 – His studies on methyl chloride resulted in his first published work.
1858 – Received his doctorate in Berlin for his work on cacodyl compounds which had been done in Kekulé’s laboratory.
1860 – Worked as a Professor at Ghent and he study uric acid, which also led him to the discovery of barbituric acid.
1865 – Started his work on indigo – the blue dye had fascinated him since his youth-and this soon led to the discovery of indole and to the partial synthesis of indigotin.
1868 – Married Adelheid (Lida) Bendemann.
1871 – He brought to light that important category of dyestuffs – the phthaleins. Baeyer’s theory of carbon-dioxide assimilation in formaldehyde also belongs to this period.
1873 – On the death of Justus von Liebig, Baeyer was called to his Chair in the University of Munich.
1881 – The Royal Society of London awarded Baeyer the Davy Medal for his work with indigo.
1905 – He was awarded the Nobel Prize for Chemistry.
1917 – He died 20th of August in Starnberg, Germany.