| supports all known variants of the tabular Islamic calendar• 3 Sha'ban Birthday of Husayn ibn Ali | Generally 6th Day of Every Month is celebrated and observed as Chatthi• with date converter valid from 1937 to 2077• based on the tabular Islamic calendar• 27 Rajab for majority of Muslims• For Shia, the martyrdom of , the grandson of Muhammad, and his followers |
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| 21 Ramadan Ali ibn Abi Talib's martyrdom |