- 1780 Antonio Sáenz, statesman, educator and cleric is born in Buenos Aires.
- 1811 The Primera Junta in Buenos Aires opens a Court Martial for General Manuel Belgrano to press charges for the defeat at the Battle of Tacuarí.
- 1886 Salvador Mazza, Argentine physician and epidemiologist is born.
- 1983 The peso argentino becomes the currency of Argentina replacing the peso ley 18,188.
