The Delian League (or Athenian League) was an alliance of Greek city-states led by Athens and formed in 478 BCE to liberate eastern Greek cities from Persian rule and as a defence to possible revenge attacks from Persia following the Greek victories at Marathon, Salamis, and Plataea in the early 5th century BCE
Buddhism was basically transmitted to other nations by teachers, researchers, exchange, resettlement, and communication systems.
Buddhism was as of now declining in India by the 12th century, but with the plunder by Muslim intruders it about got to be terminated in India within the 1200s. After the collapse of ascetic Buddhism, Buddhist locales were deserted or reoccupied by other devout orders.