Question: Who wrote an essay on the principle of population?

context: No context provided
question: Who was originally known to have written an essay on the principle of population?
short_answers: anonymous
context: The book An Essay on the Principle of Population was first published anonymously in 1798, but the author was soon identified as Thomas Robert Malthus. The book warned of future difficulties, on an interpretation of the population increasing at a geometrical ratio (so as to double every 25 years) while an increase in food production was limited to an arithmetic ratio, which would leave a difference resulting in the want of food and famine, unless birth rates decreased. 
question: Who was later identified as to having written an essay on the principle of population?
short_answers: Thomas Robert Malthus

Answer: The book An Essay on the Principle of Population was first published anonymously in 1798, but the author was soon identified as Thomas Robert Malthus. The book warned of future difficulties, on an interpretation of the population increasing at a geometrical ratio while an increase in food production was limited to an arithmetic ratio, which would leave a difference resulting in the want of food and famine, unless birth rates decreased.