Changes

In standard English, for a date with a month-day-year style, such as July 4, 1776, commas are used both before and after the year. [https://style.mla.org/commas-in-date-ranges/]

In standard English, for a city-state or city-country place name pair, such as London, England, commas go around the state or country. [https://style.mla.org/commas-place-names/]