Final answer:
The Tang Xuanzang dynasty is remembered for its cultural achievements and the establishment of the entrance exam system for government officials.
Step-by-step explanation:
The Tang Xuanzang dynasty is remembered for its cultural achievements during the Tang dynasty (618-907 CE). The dynasty made significant contributions to arts, such as calligraphy and landscape painting. They also developed the system of entrance exams for government officials, which became a crucial factor in social and economic success in China.