The Ancient Order of Hibernians (AOH) was formed in New York City by Irish immigrants seeking to create a supportive community amid the challenges they faced. Many of these immigrants were fleeing the Great Famine in Ireland and were met with discrimination and hostility in their new environment. The founders of the AOH recognized the need for a structured organization that would provide mutual aid, support, and cultural preservation for Irish immigrants. While the AOH had its roots in the Catholic Church and was heavily influenced by Irish nationalism, its primary objective was to unite Irish immigrants and promote their welfare in the context of American society.

The Hibernians established various local divisions to facilitate aid and organize social events. The organization provided essential resources such as financial assistance for those in need, support for families during hardships, and scholarship opportunities for the children of members. Over the years, the AOH has been instrumental in lobbying for greater rights and recognition for the Irish immigrant community. As it grew, it expanded its focus to include the promotion of Irish culture through parades, festivals, and events celebrating Irish history and contributions to American society.

Throughout its history, the AOH has evolved but maintained its core mission of serving the Irish-American community. The organization has also played a significant role in advocating for social justice issues, aligning with various civil rights movements. Today, the AOH continues to function as a fraternal organization, celebrating its heritage and providing solidarity to members, while fostering a sense of unity among Irish-Americans nationwide.