Humphry Davy announces isolation of calcium and boron by electrolysis

Background. Humphry Davy, a British chemist, conducted electrolysis experiments on alkaline earths including lime, magnesia, strontites, and barytes during the first half of 1808. These experiments led to the isolation of several new metals. The Royal Society of London, a learned society and national academy of sciences, served as the venue for these announcements, which were subsequently published in the Philosophical Transactions.

The 1808 Announcement. On 30 June 1808, Davy reported to the Royal Society that he had successfully isolated four new metals: barium, calcium, strontium, and magnium (later changed to magnesium). The observations from these experiments also contributed to the isolation of boron, although the specific isolation of boron is noted in the context of 1809 in some sources, while the legacy row groups it with the 1808 announcement.

The Royal Society. The Royal Society of London, founded in 1660, is the United Kingdom's national academy of sciences. It fulfills roles such as promoting science, recognizing excellence, and providing scientific advice. Davy, who was President of the Royal Society, presented his findings to this institution, which has a long history of publishing scientific achievements in its Philosophical Transactions.