Editorial archive online

RETROPAUSEARCHIVE / 1970—2009
VERIFIED ARCHIVE / WORLD INDEX

Timeline

Cultural dates, releases and technologies with reviewable evidence and editorial oversight.

1953
COMPUTERS / UNITED STATES

IBM announces the IBM 650

IBM announced the development of the IBM 650 in 1953, a magnetic-drum computer aimed at businesses and universities.

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1 source
  1. El IBM 650translate.google.com · accessed 11/03/2026
1951
FOOD AND SWEETS / ARGENTINA

Founding of Arcor in Arroyito, Argentina

A group of entrepreneurs founds Arcor in the city of Arroyito, Córdoba province, aiming to offer quality food at accessible prices, benefiting from the protectionist context of the time.

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4 sources
  1. Arcor - Wikipedia, la enciclopedia librees.wikipedia.org · accessed 10/17/2026
  2. Origen y Fundación de Grupo Arcor: Historia y Evolución ...www.studocu.com · accessed 10/17/2026
  3. Historia y expansión de Arcor | PDF | Alimentos | Businesses.scribd.com · accessed 10/17/2026
  4. (DOC) El nacimiento de Arcorwww.academia.edu · accessed 10/17/2026
9 May 1950
CARS AND MOTORCYCLES / SPAIN

SEAT is founded

The National Institute of Industry founded SEAT as a Spanish public automobile company on 9 May 1950.

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7 sources
  1. Fabricamos coches desde 1950 – Historia de SEATwww.seat.es · accessed 11/08/2026
  2. SEAT - Wikipedia, la enciclopedia librees.wikipedia.org · accessed 11/10/2026
  3. Seat celebra su 60 aniversariorevistacoche.blogspot.com · accessed 11/03/2026
  4. SEAT: 70 años sobre ruedaswww.seat-cupra-mediacenter.es · accessed 11/03/2026
  5. Línea de tiempo 2023-1950www.seat-cupra-mediacenter.es · accessed 11/08/2026
  6. ASIENTOtranslate.google.com · accessed 11/12/2026
  7. SEATes.wikipedia.org · accessed 10/29/2026
1950
TOYS / HONG KONG

Start of the manufacturing context for Playmates Dolls

Evidence places the manufacture of these dolls in the second half of the 20th century, a period marked by the expansion of toy production and export from Asia.

1 source
  1. Muñecas – MUSEO PEDAGÓGICO COLOMBIANOmuseopedagogico.pedagogica.edu.co · accessed 10/20/2026
1949
MUSIC / UNITED STATES

RCA Victor launches the 45 rpm single

In 1949, RCA Victor responded to the LP with a 7-inch record spinning at 45 rpm, aimed at the singles market and the sale of individual songs.

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5 sources
  1. Disco de vinilo - Wikipedia, la enciclopedia librees.wikipedia.org · accessed 11/09/2026
  2. Disco de vinilo - Wikipedia, la enciclopedia libre - Disco de viniloes.wikipedia.org · accessed 11/06/2026
  3. El nacimiento del disco de vinilo es ...www.instagram.com · accessed 10/30/2026
  4. Disco de vinilo - Wikipedia, la enciclopedia libre - Disco de viniloes.wikipedia.org · accessed 11/08/2026
  5. Disco fonográficoes.wikipedia.org · accessed 11/04/2026
June 1948
TECHNOLOGY / UNITED STATES

Columbia introduces the microgroove LP

In June 1948, Columbia Records introduced its 12-inch, 33⅓-rpm LP format in New York. Narrower grooves and a slower speed than the 78 rpm record allowed longer playback on each side. RCA Victor responded the following year with the 45 rpm single, and the two formats competed for a time to establish their roles in the market.

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9 sources
  1. Surcos a través del tiempo: El formato cambiante del discowww.google.com · accessed 10/30/2026
  2. Historia del Vinilo - Diffusion Magazinewww.diffusionmagazine.com · accessed 10/27/2026
  3. La historia del vinilowww.maplatine.com · accessed 10/27/2026
  4. Disco de vinilo - Wikipedia, la enciclopedia librees.wikipedia.org · accessed 11/09/2026
  5. Disco de vinilo - Wikipedia, la enciclopedia libre - Disco de viniloes.wikipedia.org · accessed 11/06/2026
  6. Surcos a través del tiempo: El formato cambiante del discowww.google.com · accessed 10/31/2026
  7. Disco de vinilo - Anónimoecuadmin.ecured.cu · accessed 11/08/2026
  8. Disco de vinilo - Anónimowww.ecured.cu · accessed 11/08/2026
  9. Disco fonográficoes.wikipedia.org · accessed 11/06/2026
1947
TECHNOLOGY / ARGENTINA

Construction begins on the gas pipeline between Comodoro Rivadavia and Buenos Aires

Construction of the pipeline began in 1947 and was completed in 1949; expanding networks and lower supply costs encouraged the adoption of gas cookers.

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2 sources
  1. la evolución de los bienes durables en Argentina, 1920-1970journals.openedition.org · accessed 10/28/2026
  2. la evolución de los bienes durables en Argentina, 1920-1970www.scielo.org.co · accessed 10/28/2026
18 October 1946
EVERYDAY LIFE / CHILE

Founding of the Osorno Municipal Historical Museum

The Osorno Municipal Historical Museum is founded in Chile, an institution that would later evolve to include records of everyday life and local heritage memory.

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1 source
  1. Museo Histórico Municipal de Osornoes.wikipedia.org · accessed 10/19/2026
1946
RESTORATION / GLOBAL

The International Council of Museums is founded

With UNESCO’s support, the International Council of Museums (ICOM) was founded, providing museums with legal and ethical backing and committing to the preservation and dissemination of cultural property. This is an institutional milestone related to heritage preservation, although it is not specific to music archives.

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1 source
  1. Estudio y análisis de los museos de música en Europadiposit.ub.edu · accessed 09/27/2026
1945
ANIMATION / SPAIN

Release of Garbancito de la Mancha

The first Spanish feature-length animated film is released, directed by Arturo Moreno and produced by Balet y Blay. The work was declared of national interest by the Franco regime.

6 sources
  1. El cine de animacióneducomunicacion.es · accessed 10/26/2026
  2. La animación española de largometrajenuevaepoca.revistalatinacs.org · accessed 10/17/2026
  3. Historia de la animación en Españawww.esdip.com · accessed 10/26/2026
  4. Historia del cine de animación | PDFes.slideshare.net · accessed 10/17/2026
  5. La animación española de largometraje: pasado, presente y ...www.researchgate.net · accessed 10/17/2026
  6. Pepita Pardell: paradigma de la invisibilización de la mujer en el cine animado españolopenalex.org · accessed 10/26/2026
1944
HOME DÉCOR / SPAIN

Restoration work affects the decoration of the Romanticism Museum’s rooms

The restoration affected the façade, a building wing, the staircase and the rooms’ decoration, as well as the corridors and garden. The source does not specify the colours, materials or motifs used.

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1 source
  1. Archivo del Museo Nacional del Romanticismo (Madrid ...censoarchivos.mcu.es · accessed 09/23/2026
1942
COMICS AND MAGAZINES / UNITED STATES

George Lowther writes a Superman novel

In 1942, George Lowther wrote a novel about Superman. The article notes that Lowther was also a scriptwriter for the radio programme The Adventures of Superman, but establishes no specific narrative connection between the two stories.

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1 source
  1. La evolución del origen de Supermantranslate.google.com · accessed 10/16/2026
1942
EVERYDAY LIFE / UNITED STATES

Fantasia begins to be reissued

From 1942 onward, Fantasia was reissued several times by RKO Radio Pictures and Buena Vista Distribution; the different versions altered, removed, or restored original footage and sound.

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1 source
  1. Fantasía (película)es.wikipedia.org · accessed 09/25/2026
13 November 1940
FILM / UNITED STATES

Fantasia premieres in New York and begins its roadshow

Fantasia’s first screening took place at New York’s Broadway Theatre on 13 November 1940. It was subsequently presented as a roadshow in thirteen US cities between 1940 and 1941.

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1 source
  1. Fantasía (película)es.wikipedia.org · accessed 10/31/2026
25 April 1940
COMICS AND MAGAZINES / UNITED STATES

The Joker Debuts in Batman #1

The Joker first appeared in the inaugural issue of Batman, published on April 25, 1940. The story introduced him as a killer and jewel thief; although he was meant to die in his second appearance, an editorial intervention allowed him to continue as a recurring Batman antagonist.

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4 sources
  1. Joker (personaje) - Wikipedia, la enciclopedia libre - Joker (personaje)es.wikipedia.org · accessed 11/06/2026
  2. EL NEBULOSO ORIGEN DEL GUASÓNdca.gob.gt · accessed 11/03/2026
  3. Diferencia entre revisiones de «Joker (personaje)» - Wikipedia, la enciclopedia libre - Alias | Príncipe Payaso del Crimen, As de bandidos, Arlequín del odio, Capucha Roja I, Mres.wikipedia.org · accessed 11/06/2026
  4. Joker (personaje)translate.google.com · accessed 10/31/2026
1940
RESTORATION / ARGENTINA

A decree establishes the creation of the Provincial Historical Museum of Santa Fe

Governor De Iriondo established the Provincial Historical Museum by decree 892/1940, on the site associated with the Diez de Andino family.

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1 source
  1. Censo-Guía de Archivos de España e Iberoaméricacensoarchivos.cultura.gob.es · accessed 09/27/2026