The Romans who funded the city, named it Londinium. It was later called Lundenwic before becoming the good old London.19 Million Travellers Visit London Every Year
Streatham is a neighbourhood in south-west London, mostly in the London Borough of Lambeth. It is centred 5 miles south of Charing Cross. The London Plan identified this area as one of 35 major centres in Greater London.
My answer on Quora to the question: “Would you support renaming London back to Londinium?”