Given the task definition and input, reply with output. Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.

Paragraph: The use of paper for hygiene has been recorded in China in the 6th century AD , with specifically manufactured toilet paper being mass - produced in the 14th century . Modern commercial toilet paper originated in the 19th century , with a patent for roll - based dispensers being made in 1883 .
Question: when was the first roll of toilet paper invented


1883