Complex sentence: In 1867 he was elected to the parliament of the North German Federation and on his failure to secure election to the German Reichstag in 1871, he resigned the presidency of the Labor Union, and retired from political life.
Split into simpler sentences: In 1867 he was elected to the parliament of the North German Federation. On his failure to secure election to the German Reichstag in 1871, he resigned the presidency of the Labor Union, and retired from political life.