Between the 2nd century BCE and the mid-15th century, an intricate web of commercial paths known as the Silk Road spanned Eurasia. This extensive network facilitated a dynamic exchange of commerce, culture, politics, and religion between the Eastern and Western hemispheres, covering a vast distance of over 6,400 kilometers (4,000 miles). Some contemporary historians advocate for the term "Silk Routes" instead of "Silk Road" to more accurately reflect the complex interconnections of land and sea routes linking East and Southeast Asia, the Indian subcontinent, Central Asia, the Middle East, East Africa, and Europe.
The name "Silk Road" originates from the lucrative trade in silk fabrics, primarily produced in China. Its origins trace back to approximately 114 BCE when the Han dynasty expanded into Central Asia, thereby stabilizing the previously turbulent region. Imperial envoy Zhang Qian embarked on exploratory missions beyond the territory to seek potential trading partners and establish diplomatic relations. These ventures spurred Chinese interest, leading to formalized diplomatic ties, commercial exchanges, and efforts to safeguard the routes through military presence and extensions of the Great Wall.