Complex sentence: In 1934 the two High Schools were combined and were governed by a Board of Managers initially representing the entire Armenian Evangelical Community in Beirut; it would came under the sole jurisdiction of the First Armenian Evangelical Church of Beirut.
Split into simpler sentences: In 1934 the two High Schools were combined and were governed by a Board of Managers representing at first the entire Armenian Evangelical Community in Beirut. But later it came under the sole jurisdiction of the First Armenian Evangelical Church of Beirut.