IB History Timeline By hirambernal Period: Oct 25, 1968 to Oct 26, 1968 Founding of the IB Jan 1, 1983 Spanish IB official language Jan 1, 1996 Mission statement Nov 21, 2000 1,000 IB World Schools Oct 13, 2008 2,000 IB World Schools Aug 13, 2010 3,000 IB World Schools Jan 1, 2018 Chinese IB official language Jan 1, 2020 4,000 IB World Schools Jan 1, 2020 150,000 DP exam candidates Jan 1, 2030 IB with a Foreign Exchange Program for students and professors