This week on Unorthodox, we've got a special episode dedicated to circumcision and the Jewish mitzvah known as the brit, or bris, that signifies entry into the tribe for eight-day-old Jewish males. We talk to Dr. Emily Blake, the mohel who performed Mark's son's bris, about why this biblical practice has remained so central to the Jewish experience, even among the non-observant.  The folks at BimBam explain Lech Lecha, the parsha in which Abraham and God enter into the covenant that defines the Jewish people. Hayim Leiter, a rabbi and mohel in Jerusalem, tells us about Safer Habrit, his organization that provides circumcision education and advocates against the controversial practice known as metzitzah b'peh. Sara Fredman Aeder tells us about approaching Jewish circumcision from a scholarly perspective and, later, a personal one, and Lizzie Skurnick shares her experience weighing circumcision as a single mother by choice. Producer Noah Levinson talks with Australian medical historian Dr. Robert Darby, (www.historyofcircumcision.net) about the speculation surrounding the British royal family's possible circumcisions, including the role of the "royal mohel.". And finally, Cristian Uriostegui tells the story of getting circumcised his junior year in college, The BimBam explainer was read by Emily Shapiro Katz, a Jewish educator in Beer Sheva, Israel; watch the animated version at bimbam.com. We'd love to know what you think about this episode! Send comments and questions for Unorthodox to Unorthodox@tabletmag.com or leave a message at our listener line: 914-570-4869. This episode is brought to you by Unorthodox Wine, offering beautiful kosher wines from South Africa. Get free shipping on any order when you visit bitly.com/unorthowine. 'The 100 Most Jewish Foods: A Highly Debatable List' comes out March 19! Featuring the biggest names in food—Jewish and not—and recipes for some of the most beloved, polarizing, and enduring Jewish foods, it’s the perfect gift to bring to this year’s Passover seder. Pre-order your copy today and you could win a $150 gift card to Russ & Daughters: to enter, forward a copy of your receipt or confirmation to 100foods@tabletmag.com.