Silk to be lawful for men to wear, but the dominant opinion of most Muslim scholars is that the wearing of silk by men is forbidden. Modern attire has raised a number of issues, including, for instance, the permissibility of wearing silk neckties, which are masculine articles of clothing. Despite injunctions against silk for men, silk has retained its popularity in the Islamic world because of its permissibility for women, and due to the presence of non-Muslim communities. The Muslim Moors brought silk with them to Spain during their conquest of the Iberian Peninsula. Italy was the most important producer of
Silk Road plague, also spread along the Silk Road. In addition to economic trade, the Silk Road was a route for cultural trade among the civilizations along its network. In June 2014, UNESCO designated the Chang'an-Tianshan corridor of the Silk Road as a World Heritage Site. The Indian portion is on the tentative site list. The Silk Road derives its name from the lucrative Asian silk, a major reason for the connection of trade routes into an extensive transcontinental network. The German terms ' and ' ("the Silk Road(s)") were coined by Ferdinand von Richthofen, who made seven expeditions to China from