On 26 September 1971 , Christiania was declared open by Jacob Ludvigsen , a well-known provo and journalist who published a magazine called Hovedbladet ( ` The main paper ' ) , which was intended for and successfully distributed to mostly young people .
On 26 September , 1971 , Christiania was opend to people by Jacob Ludvigsen , a well-known provo and journalist who published a magazine called Hovedbladet ( ` The main paper ' ) .