450-900 is the answer I think
Crossing the Silk Road, Marco Polo brought elements of Western culture to the East and Eastern culture back to the West.
Because of his exploration for trade of what is today modern China, Indonesia, Mongolia, Sri Lanka, and India, the east experienced Western culture.
Furthermore, his journeys were documented in the Book of the Marvels of the World which presented to Europeans the Asian cities and countries.
Operation Rolling Thunder was a sustained bombing campaign against North Vietnam. This was a campaign run by the troops of the United States and the Republic of Vietnam forces (South Vietnam) and took place from 2nd of March 1965 until 2nd of November 1968. There were several reasons for the operation including stopping the flow of North Vietnamese commodities and men into the South, bombing North Vietnam's transportation system and to boost South Vietnam's morale.
