What day of the week was March 29, 1809?
The day of the week March 29th, 1809 fell on was a Wednesday. There were 4 days until Easter Sunday.
King Gustav IV Adolf of Sweden abdicates after a coup d'état. At the Diet of Porvoo the Finland's four Estates pledge allegiance to Alexander I of Russia, commencing the secession of the Grand Duchy of Finland from Sweden.