Which one of the following cities was the first to attain the status o

Which one of the following cities was the first to attain the status of a ‘megacity’?

London
Paris
New York
Washington
This question was previously asked in
UPSC NDA-1 – 2022
The correct answer is C) New York.
While London was the first city to reach a population of 1 million (around 1800), the term ‘megacity’ refers to a metropolitan area with a population exceeding 10 million. The New York metropolitan area is generally considered to be the first in the world to reach a population of 10 million, doing so by the late 1930s or early 1940s, depending on the definition of the metropolitan area used.
London reached the 10 million mark later in the 20th century. Tokyo is often cited as the first Asian megacity, reaching this size later than New York but earlier than London or Paris by most definitions. Washington DC’s metropolitan area reached megacity status even more recently.