Tángcháo shì Zhōngguó lìshǐ shàng zuì chāngshèng de shíqī zhīyī.
The Tang Dynasty was one of the most prosperous periods in Chinese history.
Tips
usage
昌盛 is formal and often used in political or historical contexts. The common phrase 繁荣昌盛 (fánróng chāngshèng) is a four-character expression meaning 'prosperous and flourishing.'