Woop de doo. The Seventh Day Adventists beat Russell to it, publishing "Signs of the Times" magazine since 1874 lol.
In the mid to late 19th century it was high fever for millennarian excitement and fanaticism. This was a rather natural evolution of increasing religious sectarianiasm that developed after the weakening of centuries long grip of established religious authority, particularly by the Roman Catholic Church (which in many ways derived from the scepticism and disbelief generated by Darwin's origin of the species), from entering a new age of free enquiry, and the maturing of mass printing presses and cheaper, wide distribution of published material and the invention of the 'magazine'.