apr 1, 661 - Sassanid Persia seeks financial aid from Tang China

Description:

Due to the loss of Mesopotamia and deaths in the Plagues, Sassanid Empire had severely weakened as their income lost for over 40%. To maintain the power and seek the opportunity to fight back, Ardashir III turn to Rome and Tang for help; as the conditions of the Romans for a large amount aids will touch the interests of Zoroastrian clergy, Ardashir III chose Tang as the main sources of aid in the end.

Added to timeline:

Date: