Reconstructionist Judaism , also known as the
Jewish Reconstructionist Communities, is a modern American-based
Jewish movement based on the ideas of
Mordecai Kaplan (1881–1983). The movement views Judaism as a progressively evolving
civilization. It originated as a branch of
Conservative Judaism, before it splintered. The movement developed from the late 1920s to 1940s, and it established a rabbinical college in 1968.