To launch the new Koren-Sacks Shavuot machzor, Rabbi Sacks delivered a keynote shiur in London on 7 June 2016 to a packed room in Finchley United Synagogue. Rabbi Sacks talked about the similarities between Ruth and Tamar, and what we can learn from their experiences about our identity as a Jewish people. The event was co-hosted by Koren Publishers and the London School of Jewish Studies,