AI overview
I don't have sufficient context to write an accurate overview of "1142." While you've indicated it refers to a year, I would need to know which historical event, person, or development made that year significant in order to provide an accurate, factual explanation without inventing details.
AI-generated from the Wikipedia summary — may contain errors.
Article
Duke Henry the Lion (c. 1129–1195) Year 1142 (MCXLII) was a common year starting on Thursday of the Julian calendar.
Events