Image, sound and font credits

Where the pictures, sounds and fonts in El Trivia’s quizzes, puzzles and games come from. Almost all are in the public domain in the United States; the animal pictures in Animal Sounds are used under their license, below. Nothing here is a license to reuse anything else on the site.

Presidents’ portraits

Used in US Presidents by Picture, cropped and resized only. Each is an official or historical portrait whose public-domain status rests on one of three grounds: a work of the US federal government, a work published before 1931, or a faithful photograph of a public-domain painting.

Paintings

Used in the jigsaw puzzles, resized only, and cropped where a photo showed more than the painting. Every painting is in the public domain; the photos are either released into the public domain by the museum that holds the work (CC0) or faithful photographs of a public-domain painting, which carry no new copyright in the United States or the European Union.

Animal sounds and pictures

The recordings in Animal Sounds are trimmed, faded and evened out in volume. Each is released into the public domain (CC0), a work of the US federal government, or our own recording.

The pictures of the cow, sheep, pig, horse, duck, chicken, rooster, goat, donkey, dog, cat, lion, elephant, monkey, wolf, frog, owl, bee, snake, sea lion, crow, and songbird are Twemoji, © Twitter, Inc and other contributors, licensed under CC BY 4.0, unchanged.

Flags

Used in Flags of the World: the country-flags collection, drawn from Wikimedia Commons, which treats national flags as public domain; Kyrgyzstan’s from Wikimedia Commons.

Maps

The world map is drawn from Natural Earth and the US map from the US Census Bureau’s cartographic boundary files, both in the public domain.

The outlines in the country and state shape quizzes come from the same sources. The city outlines in City Shapes are city boundaries and coastlines from OpenStreetMap, © OpenStreetMap contributors, available under the Open Database License.

Fonts

Every font is served from this site and licensed under the SIL Open Font License 1.1. The Noto fonts are cut down to the letters the quizzes show; each comes with its license.

Words

El Word accepts guesses from ENABLE (public domain) and SCOWL, and picks its answers from SCOWL’s common words. SCOWL’s license asks for this notice:

Copyright 2000-2018 by Kevin Atkinson

Permission to use, copy, modify, distribute and sell these word lists, the associated scripts, the output created from the scripts, and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appears in all copies and that both that copyright notice and this permission notice appear in supporting documentation. Kevin Atkinson makes no representations about the suitability of this array for any purpose. It is provided “as is” without express or implied warranty.

Definitions: WordNet

Most of the definitions El Word shows after a game come from WordNet 3.1, some shortened; the rest are our own. WordNet’s license asks for this notice:

WordNet 3.1 Copyright 2011 by Princeton University. All rights reserved.

THIS SOFTWARE AND DATABASE IS PROVIDED “AS IS” AND PRINCETON UNIVERSITY MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PRINCETON UNIVERSITY MAKES NO REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE LICENSED SOFTWARE, DATABASE OR DOCUMENTATION WILL NOT INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.

The name of Princeton University or Princeton may not be used in advertising or publicity pertaining to distribution of the software and/or database. Title to copyright in this software, database and any associated documentation shall at all times remain with Princeton University and LICENSEE agrees to preserve same.