Throughout the centuries the devotion to and the veneration of the
Blessed Virgin Mary by
Roman Catholics has both led to, and been influenced by a number of
Roman Catholic Marian Movements and Societies. These societies, form part of the fabric of
Roman Catholic Mariology. Popular membership in Marian organizations grew significantly in the 20th century, as apparitions such as
Fátima gave rise to societies with millions of members, and today many Marian societies exist around the world. This article reviews the major Marian movements and organizations.