Where did the ACLU acquire funds to start?

The American Civil Liberties Union (ACLU) was founded in 1920 with initial funding from a group of civil liberties advocates, including Roger Nash Baldwin and Crystal Eastman. They raised funds through donations from individuals who supported their mission to protect civil liberties and rights in the United States. The organization has since expanded its funding sources to include membership dues, grants, and donations from philanthropic foundations and individuals.