TEDxCincinnati is back again to make every citizen a diplomat. Join speakers Bob Herring, principal of Nativity School, Michael Cioffi, partner at the international law firm of Blank Rome LLP, and others to see how you can affect change. Be ready to engage in dialogue with others about the importance of cultural understanding, appreciating diversity and building international relationships. Pre-registration is required for attendance. 7-9 p.m. Thursday, Oct. 4. $25. National Underground Railroad Freedom Center, 50 E. Freedom Way, Downtown. tedxcincinnati.com