بسم الله الرحمن الرحیم

السلام علیک یا ابا عبدالله  :Arbaeen

?what attracts 26 million people to Karbala

?what attracts people from all over the world

?Is there any aggregation like Arbaeen? what is other aggregation`s reason 

?and what is this aggregation`s reason

Arba`een occurs forty days after Ashura.

 It is said forty days after Imam Hussein`s martyrdom day

 .his sister_Zeynab_ and his family captured in Ashura, came back Karbala

.Imam Hussein has done a job that after many centuries, it isn`t forgotten

?let`s know Imam Hussein and search about what has he done