A new religious movement is a religious or spiritual group that developed after the 19th century. These groups are usually small and have short histories. They are not mainstream religions.
According to Encyclopedia Britannica: "The term new religious movement has been applied to all new faiths that have arisen worldwide over the past several centuries."
Characteristics
In most new religious movements:
Most people in the movement converted from another religion.
Parents and children are rarely part of the same movement.
The members are all part of the same social group (for example, the new middle class).
There is a clear distinction between people who are part of the movement, and those who are not. (This distinction is not so clear in mainstream religions.)
The way the group is organised may change.
Names
New religious movements have also been called sects and cults. These terms are problematic, though, because they have a negative connotation.
12Eileen Barker: Perspective: What Are We Studying? In: Nova Religio 8, 2004, Vol. 1, pp. 88–102.
123Eileen Barker: New religious movements: A practical introduction. Her Majesty’s Stationary Office, London 1989, pp 10f.
↑David G. Bromley, Anson D. Shupe: Anti-Cultism in the United States: Origins, Ideology and Organizational Development. In: Social Compass 42, 1995, pp. 221–236,the statement is on page 228.