# Duolingo High Valyrian Lessons

> Duolingo and HBO Max's campaign claimed 700 million earned-media impressions.

- Owner: Duolingo / HBO Max
- Kind: Campaign
- Sector: Education
- Seed date: 2022-07-19
- Peak date: Week of Jul 25, 2022
- Date basis: Dates use the stated precision; chart positions are date anchors.
- Spread Score: 47 (Notable, provisional), v1.2
- Mechanics: Identity badge, Challenge, Platform jump, Press loop, Pairing

## Summary

Duolingo and HBO Max promoted High Valyrian lessons with billboards and Duo at Comic-Con. Fans discussed the course on Reddit, and a claimed wedding sparked press coverage. Duolingo reported learner growth; its award entry claimed 700 million earned-media impressions.

## Timeline

- 2022-07-19 — @duolingo (X) — Duolingo posted its High Valyrian campaign creative and tagged House of the Dragon.
- 2022-07-19 — The Verge / Marketing Dive (Press) — The Verge covered the expanded course; Marketing Dive reported billboards and an HBO subscriber offer.
- 2022-07-19 — r/HouseOfTheDragon users (Reddit) — A fan listed the Duolingo course among HBO promotions; a commenter asked where to find it.

The full timeline, metrics and sources are on the case page, or via the Pro API (https://howitspread.com/developers).

Canonical URL: https://howitspread.com/cases/duolingo-high-valyrian-lessons-2022

Cite as: How It Spread (2026). “Duolingo High Valyrian Lessons.” Case HIS-00566. Spread Score v1.2: 47/100. Updated 2026-10-17. https://howitspread.com/id/HIS-00566