I think when Martin Luther made the I have a dream speech that had the biggest impact on the world, because it spoke to people. It was raw and real, very relatable. He had did a lot and for that we will always remember the things he did.
That Gentiles as well as Jews brought sacrifices to the Temple is implied in the prophet that the Temple will be a house of prayer for all peoples (Isaiah 56:7) to provide what seemed to be to those who made them plausible reasons
