kevin91nl

Embed an holiday overview from Tuxx on your website. On Tuxx you can find holidays from 30+ countries. You can copy-and-paste any Tuxx URL in a post and the information is shown automatically.
Here is a short list of several URLs which you can copy-and-paste in your posts (when the plugin is activated): 
* https://www.tuxx.uk/planning/bank-holidays/ 
* https://www.tuxxinfo.de/planung/feiertage/ 
* https://www.tuxxinfo.it/pianificazione/giorni-festivi/ 
* https://www.tuxx.pl/planowanie/swieta/ 
* https://www.tuxx.nl/feestdagen_en_gedenkdagen/ 
* And many more!
<h3>Installation guide</h3>
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Tuxx

Great plugin!

Embed an holiday overview from Tuxx on your website by copy-and-pasting Tuxx URLs.

Edward Caissie

Simple plugin that adds classes to the <code>body_class</code> output upon activation, including: a full list of date related classes; a few holiday classes; and, a generic sample full calendar extension.
<h4>Copyright 2012-2015 Edward Caissie (email : edward.caissie@gmail.com)</h4>
This program is free software; you can redistribute it and/or modify 
 it under the terms of the GNU General Public License version 2, 
 as published by the Free Software Foundation.
You may NOT assume that you can use any other version of the GPL.
This program is distributed in the hope that it will be useful, 
 but WITHOUT ANY WARRANTY; without even the implied warranty of 
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
 GNU General Public License for more details.
You should have received a copy of the GNU General Public License 
 along with this program; if not, write to the Free Software 
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
The license for this software can also likely be found here: 
 http://www.gnu.org/licenses/gpl-2.0.html

BNS Body Classes

Simple plugin that adds classes to the body_class output upon activation, including a range of date related classes.

Tuxx vs BNS Body Classes