How has a seemingly straightforward image – an eye set within a triangle – become a lightning rod for conspiracy theorists? Matthew Wilson looks at the history of an ambiguous symbol.

First thing to remember: There are lots of conspiracy theories about the dollar bill’s eye and pyramid. I wanted to see which ones were most popular. So I headed to the Bureau of Engraving and ...

Perhaps the last significant change came in 1935 when the mysterious pyramid and eye was added to the back of the bank note. Known as the Eye of Providence, the image has sparked countless ...