Editorial policy
This page answers where the material on the site comes from and who stands behind it. It names the person to contact with a question about the facts.
Who writes and who answers
The same person writes and proofreads the texts. Responsibility for the facts lies with the site's editors, not with outside contractors.
Material on this site is prepared and checked by Matthew Ashford.
Sources and fact checking
A reference to the original data matters more to us than a convenient phrasing. Each figure carries the period it refers to.
How errors are corrected
Any mistake you find can be reported through the contacts page. Once checked, the text is corrected and the date of the change appears on the page itself.
Policy last reviewed on