The cause of World War I, which made the aforementioned items transferred to alliances, imperialism, militarism, nationalism was the assassination of Archduke Franz Ferdinand of Austria-Hungary. When Russia began to prepare for WW1 due to the alliance with Serbia, Germany declared war on Russia.
Because romanticism emphasized intuition, feelings, individual acts of heroism, and the study of nature whereas the age of reason emphasized balance, order, and reason.
