24 February – Decision of the council reorganizing recovery of the poll tax on the bourgeoisie of Paris. Rents are recorded by IntendantBertier de Sauvigny and the tax is calculated proportionally; the tax yield increases from 850,000 livres to 1,400,000 livres.[2]
Lagrange presents his work on thesecular equation of the Moon to theAcadémie Française, introducing the idea of the potential of a body. He also publishes on the attraction ofellipsoids and other mathematical matters.