The Adam style is an 18th century neoclassical style of interior design and architecture, as practised by the three Adam brothers from Scotland; of which Robert Adam and James Adam were the most important.The Adam brothers were the first to advocate an integrated style for architecture and interiors; with walls, ceilings, fireplaces, furniture, fixtures, fittings and carpets all being designed by the Adams as a single uniform scheme.The Adam style found its niche from the late 1760s in upper-class and middle-class residences in 18th-century England, Scotland, Russia (where it was introduced by Scottish architect Charles Cameron), and post-Revolutionary War United States (where it became known as Federal style and took on a variation of its own). The style was superseded from around 1795 onwards by the Regency style and the French Empire style.