Background: The Orthodox nobles' rights were nominally equal to those enjoyed by Polish and Lithuanian nobility, but there was a cultural pressure to convert to Catholicism, that was greatly eased in 1596 by the Union of Brest. See for example careers of Senator Adam Kisiel and Jerzy Franciszek Kulczycki.
Question: What year was the union of brest
Answer:<extra_id_0>.
<extra_id_0> 1596<extra_id_1>