Known for its particularly tactile culture, the Eastern Roman Empire maintained rather complex customs when it came to kissing—on the lips, the shoulders, the chest, and the feet. Emperors and nobles, military leaders, and even monks engaged in the practice unsparingly. Based on the research of Sergey Ivanov, professor of history and philology at the Institute for Oriental and Classical Studies of HSE University, IQ has prepared a short guide to Byzantine kisses.