World History Encyclopedia

World History Encyclopedia is a non-profit organization publishing a free online history encyclopedia with fact-checked articles, images, videos, maps and timelines. It also produces books, translations, teaching materials, a link database, primary sources, a video magazine, infographics, a podcast and a YouTube channel, and states its mission as engaging people with cultural heritage and improving history education worldwide. Its audience is divided into history enthusiasts, students, teachers, scholars and librarians.

Article sponsorships cost $450 as a one-time payment and remain on the sponsored article in perpetuity. Newsletter sponsorships are priced per send: $360 for the English-language newsletter with 18,000 readers, $140 for the Spanish-language newsletter with 7,000 readers, and $30 for the French-language newsletter with 1,500 readers. The English-language newsletter reports 82% United States readership, a 99.8% delivery rate and a 35% open rate, with 300 to 500 clicks per email. Sales run in part through CMI Marketing, Inc. d/b/a Raptive.