languageBefore1945

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: languageBefore1945

Indicates that the language associated with an entity is attested, used, or valid prior to the year 1945.