<diacritize> Shafer then negotiated a new treaty after the Bombardment of Algiers in 1816 which was ratified by congress on February 11, 1822 owing to an accidental oversight.3 <yor>Shafer then negotiated a new treaty after the Bombardment of Algiers in 1816 which was ratified by congress on February 11, 1822 owing to an accidental oversight.3 