For the Faith, Against the State: Old Calendarism in Romania (1924-1936)

Andreea Kaltenbrunner's For the Faith, Against the State, Old Calendarism in Romania, 1924 to 1936, published by the academic press De Gruyter in 2022, is a scholarly study of the Romanian Old Calendarist movement that emerged in resistance to Patriarch Miron Cristea's 1924 adoption of the Revised Julian calendar, including the state's persecution of Old Calendarist clergy and monastics. Checked against the publisher's own listing and a New Books Network author interview, both agreeing on the book's subject and scope. Its authority rests on standard academic peer review at a major international academic press. Its limit is that it is a focused historical study of this one national movement in one specific period, so a claim about Old Calendarism in a different Orthodox country or a later period needs its own dedicated source.