Editor's note: This article was updated on July 7, 2020.
In a clinical trial from 1969 to 1972, Sir Graham Collingwood Liggins and
Leonardo da Vinci’s embryological drawings of the fetus in the
Court: Supreme Court of Massachusetts
Citation: Dietrich v. Inhabitants of Northampton, 138 Mass. 14 (1884)
Status as current law: No longer good law
Value as precedent: None
Among his myriad scientific and artistic contributions, Leonardo da Vinci’s work in embryology was groundbreaking. He observed and diagramed the previously undemonstrated position of the fetus in the womb with detailed accompanying annotations of his observations.