What is one of the defining characteristics of the modern era ?

Epoca moderna este considerata a fi perioada ce a succedat perioada post-clasica cunoscuta sub numele de Evul Mediu.

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.