The historical arc of Reconstructionist development thus proved to be long, entwined in the shifts within and between the Orthodox and Conservative folds while tempered by Kaplan’s unwavering resistance to creating a new denomination. In 1955, it was Kaplan’s followers that established the Federation of Reconstructionist Congregations and Havurot (FRCH), which included some Reform congregations and later became the Jewish Reconstructionist Federation (JRF). In 1968, the Reconstructionist Rabbinical College (RRC) was established by Rabbi Ira Eisenstein (1906–2001), Kaplan’s son-in-law and second rabbi of SAJ. In 1974, the Reconstructionist Rabbinical Association (RRA) was founded and has since remained the professional association of Reconstructionist rabbis. In 2012, the JRF and the RRC tightened their relationship, further consolidating in 2017 to form Reconstructing Judaism, the central organization of the Reconstructionist movement.