Editors. "Henry IV summons an Assembly of Notables to discuss public revenue". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15505, accessed 21 May 2013.]
Henry IV of France summons an Assembly of Notables to discuss questions of public revenue. The assembly accepts the notion of imposing a 5% sales tax on all goods except grain.