Published in Iran - Social interactions and entertainment - 2 - 12 Aug 20 16:27

General culture is mostly called general knowledge. What is general knowledge?
General knowledge is information that has been accumulated over time through various mediums. It excludes specialized learning that can only be obtained with extensive training and information confined to a single medium. General knowledge is an essential component of crystallized intelligence. It is strongly associated with general intelligence and with openness to experience.
Studies have found that people who are highly knowledgeable in a particular domain tend to be knowledgeable in many. General knowledge is thought to be supported by long-term semantic memory ability. General knowledge also supports schemata for textual understanding. In 2019, it was found in a survey that New Zealanders had concerning gaps in their general knowledge.
Source: Wikipedia
If you search google you can find the names of many books that will help you gain a lot more general knowledge.