Why did trade along the silk road flourish during the time of the Han, Kushan, Parthian, and Roman empires?

Sik road was the name of a network of trade routes that connected China and Republic of India to the jap Mediterranean and Europe. the most item of trade was silk from China, that was an extremely wanted luxury smart within the Middle East and in Europe and created China made. China foreign dates, saffron powder and pistachio buggy from Persia; thus, aloes and myrrh from Somalia; wood from India; glass bottles from Egypt. Sp[ices and alternative luxury smart additionally traveled to Europe through these roads. Trade flourished as traders. from alternative countries required merchandise from China and traders from China required merchandise from alternative countries.

Trade flourished because these progressing empires were developing new ways to produce products and utilize agriculture in their areas, such as Han with silk and Rome with olives and fishing/seafaring. These empires has never had access to goods that were from other areas before the Silk road, causing trade to become immensely popular and relied upon.