Mar 1 Ohio becomes 17th state of the Union Mar 3 1st impeachment trial of a US federal judge, John Pickering, begins Mar 3 Colégio Militar is founded in Portugal by Colonel Teixeira Rebello. Mar 19 Friedrich Schiller's "Die Braut von Messina" premieres in Weimar Share On Facebook Share On Twitter 1802 Historical Events by Year 1804