What's the term for a widely accepted cultural idea?

Example sentence: Racism was a ____ in the Elizabethan Era.

I'm looking for a word/phrase that works with "breaking". I was considering "social norms" but it doesn't really mean what I want it to convey.

Even if it doesn't work with "breaking", I'd be happy to hear your suggestions anyway!


Perhaps not fully applicable, but zeitgeist should get a nod:

zeitgeist (noun, often capitalized) | zeit·geist \ˈtsīt-ˌgīst, ˈzīt-\

The general intellectual, moral, and cultural climate of an era

Example:

The Zeitgeist of the Elizabethan Era included an acceptance of racism.

Sources:

  1. https://en.wikipedia.org/wiki/Zeitgeist
  2. https://www.merriam-webster.com/dictionary/zeitgeist

Perhaps "widely accepted worldview"

A comprehensive world view or worldview is the fundamental cognitive orientation of an individual or society encompassing the entirety of the individual's or society's knowledge and point of view. A world view can include natural philosophy; fundamental, existential, and normative postulates; or themes, values, emotions, and ethics.[1] The term is a calque of the German word Weltanschauung [ˈvɛlt.ʔanˌʃaʊ.ʊŋ], composed of Welt ('world') and Anschauung ('view' or 'outlook').[2] The German word is also used in English.

(From Wikipedia)