In 1909, AXP became a Charter member of what organization?

The correct answer is that AXP became a Charter member of the National Inter-Fraternity Conference in 1909. This organization, now known as the North American Interfraternity Conference (NIC), was established to provide a unified platform for member fraternities to coordinate activities and support one another. The founding of this conference allowed AXP to participate in collective efforts that aimed to promote the interests of fraternities as a whole, develop standards for fraternity conduct, and facilitate collaboration among different organizations. It emphasized the importance of interfraternal relations and helped ensure that the values and missions of the fraternities were upheld.