- A 173 AD Sichuan stele provides physical proof for the Celestial Masters existence at its oldest.
- By 173 AD, the Marcomanni had been defeated; however, the war with the Iazyges and Quadi continued, as Roman strongholds along the Senate awarded him the title of " Samarticus Maximus " in 175 AD . Conscious of the need to create a permanent solution to the problems on the empire's northern frontiers, Marcus Aurelius relaxed some of his restrictions on the Marcomanni and the Iazyges.
- It's difficult to see 173 ad in a sentence. 用173 ad造句挺难的