The Gentleman's Magazine was a monthly magazine founded in London, England, by Edward Cave in January 1731. It ran uninterrupted for almost 200 years, until 1922. It was the first to use the term magazine for a periodical.

The original complete title was The Gentleman's Magazine: or, Trader's monthly intelligencer. Cave's innovation was to create a monthly digest of news and commentary on any topic the educated public might be interested in, from commodity prices to Latin poetry. It carried original content from a stable of regular contributors, as well as extensive quotations and extracts from other periodicals and books. Cave, who edited The Gentleman's Magazine under the pen name "Sylvanus Urban", was the first to use the term magazine (meaning "storehouse") for a periodical. Contributions to the magazine frequently took the form of letters, addressed to "Mr. Urban". The iconic illustration of St. John's Gate on the front of each issue (occasionally updated over the years) depicted Cave's home, in effect, the magazine's "office".

Further information is available at:
https://en.wikipedia.org/wiki/The_Gentleman%27s_Magazine

Internet Archive of this publication

The Gentlemen's Magazine
By Sylvanus Urban, Gent.(1850) (pdf)