Muharram-ul-
Haram

1^st - Start of Muharram 1440 AH

2^nd - Arrival of Imam Hussain(as)and his caravan in Karbala - (61 AH)

7^th - Water cut-off from the camp of Imam Hussain(as)

9th Evening - Shab-e-Ashoor - Aamal of Shab-e-Ashoor

10^th – Day of Ashura - Martyrdom of Imam Hussain(as), his companions and faimly members - (61 AH)

12^th – Soyem of the martyrs of Karbala

16^th – Change of direction of Qibla from Bait-al-Maqdas to Khana-e-Kaaba - (2 AH)

17^th - Attack of Abraha on Khana-e-Kaaba with elephants

25^th - Martyrdom of Imam Zain-al-Abideen(as)– ( 95 AH)

Source - Azadari.com