24th amendment "The right of citizens of the United States to vote in any primary or other election for President or Vice President for electors for President or Vice President, or for Senator or Representative in Congress, shall not be denied or abridged by the United States or any State by reason of failure to pay any poll tax or other tax.The Congress shall have power to enforce this article by appropriate legislation."
look at the bold
Great question.... First off, Rome started in the year 753 BC and ended in the year 476 AD almost 1000 year rein over Europe... That being said plenty of barbarian invasion hurt the empire (The Hunnic Empire). Also political problems hurt the empire, many politicians and senators were fighting amongst them selfs and huge civil wars broke out during the late 3rd and 4th centuries... Finally, I would say Religion might have played a role in the empire collapse. Since Jesus died on the cross many have spread Christianity across the empire, which some say was the MAIN reason why Rome fell....
So that your teacher will understand you
Because the were being persecuted, and they believed that it was Zion.