Where does this come from, and can I check it?

Columbia's microgroove LP turned at 33 and a third and held about 22 minutes a side. The figure is taken from Library of Congress, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a music fact?

Yes. It sits on the Music shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

The long playing record arrived in 1948

Columbia's microgroove LP turned at 33 and a third and held about 22 minutes a side Vinyl and a narrower groove allowed far more playing time than shellac. RCA answered with the seven inch 45, and the two formats divided the market for decades. The LP made the album a serious artistic unit rather than a bundle of singles. It sits in Mondo's music collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Library of Congress

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Music trivia

More facts like this

Records outsold compact discs againVinyl passed CD revenue in the late 2010s and kept climbing One side of an LP holds hundreds of metres of grooveThe spiral on a twelve inch record unrolls to roughly 460 metres RCA's seven-inch single spun at 45 rpmThe 1949 format had a wide centre hole so automatic changers could grip it The cassette was meant for dictationPhilips introduced it in 1963 as a compact, cheap recording medium Eight track cartridges rolled the tape in one loopThe end of the tape simply joined the start, so it played for ever Wax cylinders lost the first format warEdison backed cylinders while rivals pushed discs that could be stamped

Tags: formats, vinyl, history

The long playing record arrived in 1948: the short answers

Where does this come from, and can I check it?: Columbia's microgroove LP turned at 33 and a third and held about 22 minutes a side. The figure is taken from Library of Congress, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a music fact?: Yes. It sits on the Music shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.