In what ways was the greek culture introduced and continued east of greece in central asia?

Know as the Hellenistic Period, when Alexander the Great conquered Central Asia he introduced the Greek culture to the country. When those under Alexander's rule spread out to form their own Empire's under his rule, they brought along the Greek culture. Even after their demise, their is still influence from others as they interact with other cultures, exchanging knowledge and customs.

the exclusive possession or control of the supply or trade in a commodity or service.