Although there are no known accounts of official sponsorship, ballpoint pen companies have shown support to artists using their products.

The first known account of the manuscript reports that it was used as an oath book in the city of Lincoln.

It is the oldest known account of a naturalistic evolution of religion.

No known accounts were written of the campaign, though in the end it was a success.

At least one source claims that Fawkes married and had a son, but no known contemporary accounts confirm this.

The first known account of the ceremony dates back to 1877 in Sicily.

The only known firsthand account of Monet's early life, it depicts him as a young man devoted to drawing.

There are two known extant accounts written by contemporaries of Bodhidharma.

The oldest known account of the story comes from 12th century, in the work by Wincenty Kadłubek.

The only known account of the "haunting" prior to Ingram's publication, was in 1886, (over 60 years after the events).