I saw this message on the Twitter feed of the Tokyo Metropolitan Government: Happy #TokyoDay! #OnThisDay in 1868, the city of Edo changed its name to Tokyo, opening a new chapter in the city’s history.
So, Tokyo was born on 17 July 1868. Which makes it a Cancer. Same as Benedict Cumberbatch, whose birthday is on the 19th. Yup, OK, I can live with that! :p Happy birthday, Tokyo!