London is often described as the most multi-ethnic and diverse city in Europe. Its residents hail from all across the world: former Commonwealth countries like India, Bangladesh and Australia, fellow member states of the European Union and other nations. It’s full of different languages and as many different kinds of cuisine. According to the census, although the majority of Londoners were born in the United Kingdom, some of the largest groups born outside the UK include India, Poland, Bangladesh, Romania and Pakistan. Whenever I visit the British capital, I stay with a friend in Wood Green in North London. Twenty...