Here is Complete General information about OIC,The Organisation of the Islamic Conference (OIC)
Eatablished. September 25, 1969.
Headquarters Jeddah, Saudi Arabia
Official languages Arabic, English, French
Membership 57 member states
Leaders
Secretary-General Ekmeleddin Ehsanaglu
The Secretary General of the OIC
Tunku Abdul Rahman (Malaysia): (1971–1973)
Hassan Al-Touhami (Egypt): (1974–1975)
Dr. Amadou Karim Gaye (Senegal): (1975–1979)
Habib Chatty (Tunisia): (1979–1984)
Syed Sharifuddin Pirzada (Pakistan): (1985–1988)
Dr. Hamid Algabid (Niger): (1989–1996)
Dr. Azeddine Laraki (Morocco): (1997–2000)
Dr. Abdelouahed Belkeziz (Morocco): (2001–2004)
Ekmeleddin İhsanoğlu Turkey 2004 2014
Iyad bin Amin Madani Saudi Arabia 2014 2016
Yousef Al-Othaimeen Saudi Arabia 2016 Incumbent
Read also: General Knowledge of SAARC
Past Islamic Summit Conferences
1st September 22–25, 1969 Morocco Rabat
2nd February 22–24, 1974 Pakistan Lahore
3rd January 25–29, 1981 Saudi Arabia Makkah Al Mukarramah and Taif
4th January 16–19, 1984 Morocco Casablanca
5th January 26–29, 1987 Kuwait Kuwait City
6th December 9–11, 1991 Senegal Dakar
7th December 13–15, 1994 Morocco Casablanca
1st Extraordinary March 23, 1997 Pakistan Islamabad
8th December 9–11, 1997 Iran Tehran
9th November 12–13, 2000 Qatar Doha
2nd Extraordinary March 5, 2003 Qatar Doha
10th October 16–17, 2003 Malaysia Putrajaya
3rd Extraordinary December 7–8, 2005 Saudi Arabia Makkah Al Mukarramah
11th March 13–14, 2008 Senegal Dakar
12th 2011 Egypt Cairo
13th 14–15 April 2016 Turkey Istanbul