By the late 1850s, American popular interest in European affairs waned and Marx's articles turned to topics such as the "slavery crisis" and the outbreak of the American Civil War in 1861, in the "War Between the States".
Pada akhir 1850an, peminatan masyarakat Amerika terhadap perkara-perkara Eropa timbul dan artikel-artikel Marx beralih ke topik-topik seperti "krisis perbudakan" dan pecahnya Perang Saudara Amerika pada 1861, dalam "War Between the States".