In Europe, during the late 18th century and early 19th century, the literary and intellectual movement of romanticism presented new and progressive ideas about love marriage, which started to gain acceptance in society. In the 19th century, marriage practices varied across Europe, but in general, arranged marriages were more common among the upper class. Arranged marriages were the norm in Russia before early 20th century, most of which were endogamous. Child marriages were common historically, but began to be questioned in the 19th and 20th century. Child marriages are often considered to be forced marriages, because children (especially young ones) are not able to make a fully informed choice whether or not to marry, and are often influenced by their families.