mojarity of the iranians belong to the shia sect of islam and are known to be rivals with the sunny sect to which more than 70 percent of muslims belong .
the dividing line between the two sect was drawn by the trouble and figtings for leadership that took place after the death of muhammad.

the shiatual Ali (meaning the sect of Ali) believed muhammad prefred and had chosen Ali to succede him , but the sunni found themselves as those behind the leadership of abubakar who happens to be one of the closest sahabas to muhammad.

abubakar eventualy became the caliph after muhammad ,and was succeded by umar instead of ali and umar after his assination was succeded by uthman ,thefore leaving ali out of the seat of rulership for a long time.

by this time the three caliphs had already spread islam beyond hijaz and had conqured arabia spreading it empire into other parts of asia and africa through jihad(warefare)
as the result majority of the converts came under the leadership of sunni led caliphate.

HISSCRIBE1995:
mojarity of the iranians belong to the shia sect of islam and are known to be rivals with the sunny sect to which more than 70 percent of muslims belong .
the dividing line between the two sect was drawn by the trouble and figtings for leadership that took place after the death of muhammad.

the shiatual Ali (meaning the sect of Ali) believed muhammad prefred and had chosen Ali to succede him , but the sunni found themselves as those behind the leadership of abubakar who happens to be one of the closest sahabas to muhammad.

abubakar eventualy became the caliph after muhammad ,and was succeded by umar instead of ali and umar after his assination was succeded by uthman ,thefore leaving ali out of the seat of rulership for a long time.

by this time the four caliphs had already spread islam beyond hijaz and had conqured other parts of arabia spreading it empire into of asia through jihad(warefare)
as the result majority of the converts came under the leadership of sunni led caliphate.

Good for them, Catholics, & Protestants the same wahala also.

Whatever the situation, fear the almighty he is one, be his name Jehovah, or Allah.