<p>Inventor Abraham Lincoln, Johnny Carson's last Tonight Show, and Sir Arthur Conan Doyle...all On This Day! (Plus!- is that the sound of Arthur Conan Doyle making contact from the other side?)</p>

Inventor Abraham Lincoln, Johnny Carson's last Tonight Show, and Sir Arthur Conan Doyle...all On This Day! (Plus!- is that the sound of Arthur Conan Doyle making contact from the other side?)

<p>Inventor Abraham Lincoln, Johnny Carson's last Tonight Show, and Sir Arthur Conan Doyle...all On This Day!&nbsp;(Plus!- is that the sound of Arthur Conan Doyle making contact from the other side?)</p>

May 22nd

A daily time capsule of stories of the significant, intriguing or just plain forgotten events of history that all occurred on this day.

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May 22nd

May 22nd