Rajab-al-Murajjab

1^st - Birth of Imam Mohammad Baqir (as) - (57 AH)

2^nd - Birth of Imam Ali Naqi al-Hadi (as) - (214 AH)

3^rd - Martyrdom of Imam Ali Naqi al-Hadi (as) -(254 AH)

10^th - Birth of Imam Taqi al-Jawwad(as) -(195 AH)

12^th - Death of Hazrat Abbas ibn-e-Abdul Muttalib - Uncle of Prophet Mohammad(sawaw)

13^th - Birth of Imam Ali ibn-e-Abi Talib(as) -(30)

15^th - Death of Hazrat Zainab bint-e-Ali(a.s.) - [62 A.H.] 

20^th - Birth of Hazrat Sakina bint-al-hussain

24^th - Battle of Khyber-(7 AH)

25^th - Martyrdom of Imam Moosa al-Kazim(a.s.) - [183 A.H.]

26^th - Death of Hazrat Abu Talib(a.s.)

27^th - Shab-e-Mairaj

28^th - Start of JoRamzan-ul-

Mubarak

10th - Death of Hazrat Khadija - wife of Prophet Mohammad(sawaw)

11th - Brotherhood among Ansar and Muhajireen - (1 AH)

15th - Birth of Imam Hasan(as) - the 2nd Holy Imam - (2 AH)

13th, 14th, 15th - Ayyam-e-Bayd - the bright day

17th - Battle of Badr - (2 AH)

19th Evening - Probable night of Shab-e-Qadr - the night of power

19th - Imam Ali(as) injured by an attack by a munfiq - (40 AH)

20th - Conquest of Makkah - (8 AH)

21st Evening - Probable night of Shab-e-Qadr - the night of Power

21st - Martyrdom of Imam Ali(as) - the 1st Holy Imam - (40 AH)

23rd Evening - Most probable night of Shab-e-Qadr - the night of Power

27th - Another probable night of Shab-e-Qadr - the night of Power

Source - Azadari.com