An estimated 10 to 14 million people visited the shrine of Imam Hussein in Karbala, Iraq during Arba'een in 2009.An estimated 10 to 11 million people visited the shrine of Imam Hussein in Karbala, Iraq during Arba'een in 2010Source Wikipedia
Of course Imam Hussain (a.s.) is real.
about 150people
Imam Sadiq S.A. is son of Imam Baqir S.A. Imam Baqir S.A. is son of Imam Sajjad S.A Imam Sajjad S.A is son of Imam Hussain S.A. Imam Hussain S.A. and Imam Hasan S.A. are children of Imam Ali S.A.
Imam Hussain S.A. Imam Sajjad S.A. Abbas S.A. Zainab S.A.
Imam Hussain bin Ali , When He died He was 57 years
her of imam hussain(as) is Imam ALI IBN ABI TALIB (AS)
Imam Hasan S.A. and Imam Hussain S.A.
his son Imam Sajjad S.A.
Fatima Sughra Bint Hussain is Imam Hussain (A.S) Daughter
Imam Hasan S.A. and Imam Hussain S.A. from Fatima S.A. daughter of prophet.
His two sons Imam Hassan(A.S) and Imam Hussain(A.S) burried him. (as written in books)