Whether Levi Dickenson was the first American to use sorghum to make brooms is in contention. However, nearly all acknowledge that the United Society of Believers, familiarly called the Shakers, quickly moved into the broom-making business about 1798 by growing broomcom and making brooms. The Shakers' Watervliet, New York, community took the lead in manufacturing brooms, although nearly all the Shaker communities constructed and sold them throughout the century. The Shakers are credited with inventing the flat broom. They recorded that Theodore Bates of Watervliet examined the circular bundled broom and determined that flat brooms would move dust and dirt more efficiently. The bundles were put into a vice, flattened, and sewn in place.