The opening of the first unicameral Diet The opening of the first unicameral Diet « Back to search results « Back Share icon Share Share in Facebook Share in Linkedin Share in Twitter Send as an email The opening of the first unicameral Diet. Festive procession in the Senate Square on the way from St. Nicholas’ Church to the Imperial Palace (now the Government Palace) on May 25, 1907, with the House of the Senate in the background. Location marker icon Show on map Used in articles The Senate Square Article Article Go to content Photographer Helsinki City Museum / Signe Brander Period 1907 Finna.fi record (The link opens in a new tab.) Open in new window(Link leads to external service) Formats Photo Image Authors Brander Signe HKM Copyrights CC BY 4.0 Buildings Helsinki City Museum