Francis Bacon (1561-1626), in his Novum Organum (1620), classifies the sources of false beliefs (i.e. bullshit beliefs) into four categories or idols:
idols of the tribe (idola tribus),
idols of the cave (idola specus),
idols of the market (idola fori), and
idols of the theater (idola theatri).
C. D. Broad, The Philosophy of Francis Bacon, 1926.