ELT Public Domain OER

This page is a list of helpful Open Educational Resources in the Public Domain for English Language Teachers.

Dictionaries

 * Webster's Unabridged Dictionary from Project Gutenberg | Original 1913 | Project Gutenberg 2009
 * Plain Text UTF-8 Version from Project Gutenberg
 * The Slang Dictionary Etymological, Historical and Andecdotal by John Camden Hotten | Original 1911 | Project Gutenberg 2013

Encyclopedias

 * Encyclopedia Britannica from Wikisource | Original 1911

Multimedia

 * https://commons.wikimedia.org/wiki/Category:CC-PD-Mark