Period and movement in cultural history
A cultural movement is a shared effort by loosely affiliated individuals to change the way others in society think by disseminating ideas through various art forms and making intentional choices in daily life. By definition, cultural movements are intertwined with other phenomena such as social movements and political movements, and can be difficult to distinguish from broader cultural change or transformation.
Historically, different nations or regions of the world have gone through their own independent sequence of movements in culture; but as world communications have accelerated, this geographical distinction has become less distinct. 
When cultural movements go through revolutions from one to the next, genres tend to get attacked and mixed up, and often new genres are generated and old ones fade.: These changes are often reactions against the prior cultural form, which typically has grown stale and repetitive. An obsession emerges among the mainstream with the new movement, and the old one falls into neglect – sometimes it dies out entirely, but often it chugs along favored in a few disciplines and occasionally making reappearances (sometimes prefixed with "neo-").
There is continual argument over the precise definition of each of these periods as one historian might group them differently, or choose different names or descriptions. Even though in many cases the popular change from one to the next can be swift and sudden, the beginning and end of movements are somewhat subjective. This is because the movements did not spring out of the blue and into existence then come to an abrupt end and lose total support, as would be suggested by a date range. Thus use of the term "period" is somewhat deceptive. "Period" also suggests a linearity of development, whereas it has not been uncommon for two or more distinctive cultural approaches to be active at the same time. Historians will be able to find distinctive traces of a cultural movement before its accepted beginning, and there will always be new creations in old forms. So it can be more useful to think in terms of broad "movements" that have rough beginnings and endings. Yet for historical perspective, some rough date ranges will be provided for each to indicate the "height" or accepted time span of the movement.
This list covers Western, notably European and American cultural movements. They have, however, been paralleled by cultural movements in East Asia and elsewhere. In the late 20th and early 21st century in Thailand, for example, there has been a cultural shift away from Western social and political values and more toward Japanese and Chinese. As well, Thai culture has reinvigorated monarchical concepts to accommodate state shifts away from Western ideology regarding democracy and monarchies. 
 See: Classical architecture — Classical sculpture — Greek architecture — Hellenistic architecture — Ionic — Doric — Corinthian — Stoicism — Cynicism — Epicurean — Roman architecture — Early Christian — Neoplatonism
 See: Romanesque architecture — Ottonian Art
 See: Gothic architecture — Gregorian chant — Neoplatonism
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