Q4: The "Know-Nothings" (1850s) was a group of native-born Americans which tried to stop Irish immigration. The "Know-Nothings" thought that the Irish were “alien” and would not support US democracy because of their Catholic religion. The "Know-Nothings" became too violent and failed. The Irish persevered and overcame discrimination and exploitation.
100 years later, what movement tried to end racial discrimination?
The fight against xenophobia based on religious belief continues. See the #NoBanNoWall Citizenship Interviews https://goo.gl/efwVO