1- Ibn Darid Passed away
The eminent scholar, abu Bakr Muhammad Ibn al Hasan was reputed to Ibn Darid died on the eighteenth Sha'ban of 328 Hijrah in Baghdad. He is one of the Shiite Scholars. Ibn Shahr Ashoob knows him the poet of Household (Ahlulbait) and say about him: when a poem was read to him, then he would memorize it. Abdussalam Ibn Muhammad who was deputed to Abu Hashem Jaba'ei died in the day when he died. The people said: "the science of linguistic died with the death of Ibn Darid and Abu Hashim".(75)

2- the Death of Husein Ibn Ruh Nobakhti
The third deputy of Imam Zaman(a.s), Husein Ibn Ruh Nobakhti died on 18th sha'ban 328 A.H in Baghdad and buried there.(76)

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75- Vaghaie' Ulayyam, page 349.
76- Shi'a Calendar , page 211.