The Vilna Gaon and the Tzemach Tzedek Wrestle Over the Yarmulka

Source Sheet (rebrand.ly/Yarmulka)
• Stories from the Gemara about head covering
• Does the Gemara's reference to head covering refer to a
• Yarmulka or to something more?
• Is wearing a Yarmulka an obligation or "Midas Chassidus"?
• Does it depend where you are or what you're doing?
• Does covering your head with your hand work?
• Drama over the Teshuva of the Tzemach Tzedek