Bayer was threatened and persecuted for his works, so he lived in exile in Germany for many years until 1983, when Argentina's civil-military dictatorship crumbled.
When he returned to Argentina, he developed a prolific journalistic career, first as editor of the Continente magazine, then as editor-in-chief of the Esquel de Chubut newspaper, until he regularly collaborated with Pagina 12, a progressive newspaper.
Bayer was born in Santa Fe on February 18, 1927. He was a militant and fought for several popular causes in his homeland.
He also collaborated with journalist Rodolfo Walsh, author of 'Operation Massacre' and founder of the Latin American Information Agency Prensa Latina in Cuba in 1959.
According to an article published this Monday in Pagina 12, his work focused on workers' struggles and repression against organized labor left a mark Argentine contemporary history. According to the publication, Bayer was one of the voices who denounced abroad the State repression of the civil-military dictatorship.
He also recognizes that 'the defense of ethics and human rights were his stronghold.
Buenos Aires, Dec 25 (Prensa Latina) The distinguished Argentinean journalist, writer and historian Osvaldo Bayer, one of Latin America''s most renowned thinkers, died in Buenos Aires Monday at age 91. 

