I tried to get my facts straight and be at least passably knowledgeable about Lyon before I arrived.
Summaries are great so I’ll give you one on Lyon:
The residents of the city are called Lyonnais.
Together with its suburbs and satellite towns, Lyon forms the second-largest metropolitan area in France after Paris, with the population of its urban area estimated to be 1,422,331 and that of its metropolitan area 1,757,180.
Its urban region represents half of the Rhône-Alpes region population with 2.9 million inhabitants.
The city is known for its historical and architectural landmarks and is a UNESCO World Heritage Site.
Lyon was historically known as an important area for the production and weaving of silk and in modern times has developed a reputation as the capital of gastronomy in France.