Portal:Argentina/Anniversaries/October/October 9
- 1841 Juan Lavalle military and political figure dies.
- 1936 Alejandro Korn, Argentine physician, psychiatrist, philosopher, reformist and politician dies.
- 1934 The Nahuel Huapi National Park, Argentina's oldest National Park is created.
- 1939 Ernesto Acher, musician and ex-member of Les Luthiers, is born in Buenos Aires.