Survivors and veterans have been gathering at what was Buchenwald Concentration Camp to mark the 70th anniversary of its liberation on April 11, 1945.<br /><br /> The clock at the site, near Weimar in Germany, showed 3.15 pm, the exact time the camp was liberated by US troops.<br /><br /> A quarter of a million people were imprisoned at Buchenwald between 1937 and 1945, some 56,000 of whom died.<br /><br /> Inmates included Jews, Soviet prisoners of war, political prisoners, homosexuals, Sinti and Roma and Jehovah’s Witnesses.<br /><br /> Prisoners had to endure humiliation, starvation, coldness and disease. Many were worked to death, others died in medical experiments or were murdered arbitrarily.
