TODAY IN HISTORY: The mix-up when two identical strangers with the same name were locked up in the same prison
An inmate called Will West was incarcerated in Leavenworth Federal Prison in Kansas on May 1, 1903.
Using their standard system of identification methods, the admissions clerk determined West had already been in that prison, despite his denials.
The clerk cited paperwork that somebody with his name and exact physical description had already been incarcerated there.
But the paperwork then revealed a twist - the person with those details was still there.
William West was already at the prison serving a life sentence for murder.
And by incredible coincidence the two men had the same name and looked identical.
The following year, Leavenworth started fingerprinting their prisoners.
Perhaps the most defining image of the Obama administration was taken on May 1, 2011.
The photograph shows Obama and many other senior members of his administration watching updates of the raid on Osama bin Laden's compound in Pakistan.
The biggest names in the Obama administration are seen in the photo, but the person who has attracted the most curiosity is barely in frame.
A CIA analyst identified only as "John" was considered bin Laden's "hunter-in-chief".
To protect his identity, everything but his arm was cropped out of the photo.
A Melbourne suburb changed its name from Rosstown to Carnegie on May 1, 1909.
The suburb was originally named after developer William Murray Ross, a local landowner.
But despite the apparent overture from the Melbourne community, the tycoon didn't respond.
He did however pay for a library in Northcote, a 40-minute drive away.
The body of legendary British mountain climber George Mallory, who disappeared on Mount Everest in 1924, was discovered on the famous mountain on May 1, 1999.
Mallory and his climbing partner Andrew Irvine were last seen about 800 metres below the 8848 metre summit in June, 1924.
The discovery sparked fresh speculation to pair had been the first humans to climb the peak.
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