On this day: May 12

/on/may-12
1974 • neutral • 2 views

College Baseball Team Completes Game Before Noticing Scoreboard Error

Outdoor college baseball field in the 1970s with a manual scoreboard showing numbers and a small crowd in simple clothing seated on metal bleachers.

On May 12, 1974, a college baseball game proceeded to completion while players and officials did not realize the public scoreboard displayed the wrong score; the error was discovered only after the final out.

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1894 • neutral • 5 views

May 12, 1894: A Paris Theatre and an Early Report of Mass Hypnosis

Late 19th-century theatre interior with crowded audience and a performer onstage; gas or early electric lighting, period dress, no identifiable faces.

On 12 May 1894 a widely reported incident at a Paris theatre — linked to stage hypnotist performances and crowd contagion — became one of the first documented cases described in contemporary press and medical commentary as mass hypnosis.

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1915 • neutral • 4 views

First Electric Traffic Citation Issued, May 12, 1915

Early 20th-century city intersection with an electrically lit traffic signal device mounted on a pole, period automobiles and pedestrians, and policemen observing; daytime, pre-1920 clothing and signage.

On May 12, 1915, a city police department issued what contemporary reports identified as the first traffic citation generated by an electric traffic control device, marking an early moment in automating traffic enforcement amid rising automobile use.

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1931 • neutral • 4 views

Public Outcry Follows First Screening of a New Horror Film

Interior of a 1930s movie palace lobby with crowds gathered, ticket booth and poster boards visible; atmosphere tense and bustling.

On May 12, 1931, the public screening of a recently released horror film drew intense controversy: reports from the day describe outraged audiences, calls for censorship, and vigorous debate about cinematic depictions of violence and the supernatural.

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1932 • dark • 5 views

Kidnapped Lindbergh Baby Found Dead in New Jersey

Rural New Jersey roadside in spring 1932 with low stone walls, leafless trees, and a small clearing near a dirt lane; somber, overcast sky and no people visible.

On May 12, 1932, the body of Charles Lindbergh’s infant son was discovered near the Lindbergh family home in Hopewell, N.J., ending a widely publicized kidnapping that began in March and sparking a national outcry and a high-profile investigation.

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1984 • neutral • 7 views

A new method for DNA fingerprinting is proposed

Laboratory bench in the 1980s with gel electrophoresis equipment, autoradiograph strips showing banding patterns, reagent bottles, and a scientist’s gloved hands handling a membrane—representing early DNA fingerprinting work.

On 12 May 1984, geneticist Alec Jeffreys and colleagues reported the first description of a method that would become known as DNA fingerprinting, based on variable regions in human DNA that produce individual-specific banding patterns.

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