The Observer is a British newspaper published on Sundays and formerly sister paper to The Guardian and The Guardian Weekly up to the 20 April 2025 edition. . First published in 1791, it is the world's oldest Sunday newspaper. . In 1993 it was acquired by Guardian Media Group Limited. In December 2024, Tortoise Media acquired the paper from the Scott Trust Limited with the transition taking place on 22 April 2025. History. Origins. The first issue, published on 4 December 1791 by W.S. Bourne, was the world's first Sunday newspaper.
https://en.wikipedia.org/wiki/The_Observer